The Gasket, cataloged under National Stock Number 5330-00-734-6557, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Sealcraft Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-734-6557 |
| Primary Part Number | 517815 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Sealcraft Corporation |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN |
| Style Designator | NON-CIRCULAR |
| Material Document and Classification | MIL-G-12803,+2255A MIL SPEC ALL MATERIAL RESPONSES OVERALL A |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Diameter | 2.560 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Center to Center Distance Between Bolt Holes Along Length | 2.620 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Center to Center Distance Between Bolt Holes Along Width | 2.620 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Length | 0.440 INCHES NOMINAL IN |
| Outside Corner Radius | 0.440 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR AND CORK OVERALL |
| Hole Diameter | 0.440 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Width | 0.440 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5330-00-734-6557 is a Gasket, manufactured by Sealcraft Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-734-6557 has 2 manufacturer part numbers on file: 517815 (Sealcraft Corporation), 7346557 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 1720-01-017-5239. Verify interchangeability with system specifications before substitution.
Key specifications for 517815: Cross-Sectional Thickness: 0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN; Style Designator: NON-CIRCULAR; Material Document and Classification: MIL-G-12803,+2255A MIL SPEC ALL MATERIAL RESPONSES OVERALL A; Overall Length: 3.500 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.