NSN 5330-01-297-7576, 5330012977576
Cancelled -> Replaced by 5330009660377

Federal Supply Classification: FSC 5330 - Packing and Gasket Materials
National Item Identification Number: NIIN 012977576
Codification Country: United States
Item Name Code: INC 37840
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: (P) There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product.

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DLMS^® Summary

National Stock Number 5330-01-297-7576

National Stock Number (NSN) 5330-01-297-7576, or NIIN 012977576, (gasket,spiral wound) was assigned April 6, 1989 in the Federal Logistics Information System (FLIS). NIIN 012977576 was cancelled on January 2, 2013, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5330015222660. This NSN replaces 1 stock number, 5330009660377.

There are 3 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 14 sources of supply.

This part number has not been procured by the US Government in over 5 years.

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 Jul 02, 2020, this NSN's acquisition method was noted as: Not established. Not established.

This NSN is assigned to Item Name Code (INC) 37840. [A CIRCULAR OR MODERATELY NONCIRCULAR SHAPED ITEM WITH AN APERTURE. IT IS CONSTRUCTED OF SPRING-LIKE METAL STRIPS, PREFORMED INTO A VEE SHAPE, LAMINATED WITH A SOFT FILLER. IT IS DESIGNED TO SEAL BETWEEN TWO NONDEFORMING SURFACES. IT MAY HAVE AN INNER AND/OR OUTER, SOLID OR SPIRAL WOUND COMPRESSION RING(S).]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5330012977576 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

ENVIRONMENTAL ATTRIBUTE CODE: (ENAC) ASBESTOS ALTERNATIVE PRODUCTS
OUTSIDE DIAMETER: (ABKV) 2.594 INCHES MINIMUM AND 2.656 INCHES MAXIMUM
SPECIAL FEATURES: (FEAT) ASBESTOS FREE
CROSS-SECTIONAL SHAPE STYLE: (AAGR) METAL WINDING W/ SOFT FILLER
CROSS-SECTIONAL THICKNESS: (ADVM) 0.061 INCHES MINIMUM AND 0.068 INCHES MAXIMUM
APERTURE DIAMETER: (ABVL) 2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM
END ITEM IDENTIFICATION: (AGAV) W/S: ENGINE, AIRCRAFT, T56-A-7/15 (C-130B/E/H/N/P); AIRCRAFT (AC-130H, MC-130H, EC-130E, HC-130); HELICOPTER, GREEN GIANT H-3; ENGINE, AIRCRAFT, TF34-GE-100 (A-10); HELICOPTER,HH-53H PAVE LOW; AIRCRAFT, EAGLE F-15; AIRCRAFT, HERCULES C-130
MATERIAL: (MATT) CHLORITE SPIRAL WOUND FILLER AND STEEL COMP 304 SPIRAL WOUND FILLER
STYLE DESIGNATOR: (STYL) CIRCULAR