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NSN 5305-01-110-9771, 5305011109771
SCREW,CLOSE TOLERANCE

Federal Supply Classification
FSC 5305 - Screws
National Item Identification Number
NIIN 011109771
Codification Country
United States
Item Name Code
INC 29294
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 5305-01-110-9771

National Stock Number (NSN) 5305-01-110-9771, or NIIN 011109771, (screw,close tolerance) was assigned April 8, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 6 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 22 suppliers. Today, 19 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 17 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 20 contracts issued for this part number, with 22 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE4A624V1278, SPE4A623PG438, SPE4A623PG438, SPE5EY20F6712, SPE5EY19F314V. The total value of the awarded contracts has been US$ 202,686.76.

This NSN is somewhat common among different platforms, belonging to 8 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 29294. [A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5305011109771 does not contain precious metals.

This NSN is associated to Schedule B 7318152000: bolts and bolts and their nuts or washers exported in the same shipment. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

COUNTERSINK ANGLE
(CRSQ) 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH
(AASB) 0.953 INCHES MINIMUM AND 0.983 INCHES MAXIMUM
GRIP DIAMETER
(AAUR) 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH
(ANEE) 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
HEAD DIAMETER
(AASL) 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
HEAD HEIGHT
(AASU) 0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
HEAD STYLE
(AASK) FLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLE
(ABQZ) HIGH-TORQUE
MATERIAL
(MATT) STEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER
(AHYM) 0.250 INCHES
SPECIAL FEATURES
(FEAT) FURNISHED WITH ONE O-RING
THREAD CLASS
(AAJD) 3A
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD LENGTH
(AASA) 0.443 INCHES MINIMUM AND 0.493 INCHES MAXIMUM
THREAD QUANTITY PER INCH
(CMLP) 28
THREAD SERIES DESIGNATOR
(THSD) UNJF
SURFACE FINISH
(CSYM) 32.0 MICROINCHES GRIP
SURFACE FINISH
(CSYM) 32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-C-83488,TYPE2,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) ALUMINUM OVERALL AND CHROMATE OVERALL

Manufacturer Part Numbers

11881C48A

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5
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RNCC
5
RNVC
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3M925C48A

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3M925C48A

RNCC
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2
3M925C48A

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3
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642AS16313

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CHT406748A

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5
RNVC
9
CHT406748A

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5
RNVC
9
HT406748A

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RNVC
2
HT406748A

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5
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2
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RNVC
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HT406748A

RNCC
5
RNVC
2
HT406748A

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5
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HT406748A

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HT406748A

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HT406748A

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5
RNVC
2
HT406748A

RNCC
5
RNVC
9
HT406748A

RNCC
5
RNVC
9
HT406748A

RNCC
5
RNVC
2
WC406748A

RNCC
5
RNVC
9
WC406748A

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5
RNVC
2
3M925C48A

ISC
2
RNCC
3
RNVC
2
3M925C48A

ISC
2
RNCC
3
RNVC
2
3M925C48A

ISC
2
RNCC
3
RNVC
2
HT406748A

RNCC
5
RNVC
2
3M925C48A

ISC
2
RNCC
3
RNVC
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3M925C48A

ISC
2
RNCC
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3M925C48A

ISC
2
RNCC
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3M925C48A

RNCC
5
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