The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-510-4269, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-510-4269 |
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Cross-Sectional Height | 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM D 4066 ASSN STD SINGLE MATERIAL RESPONSE OR L-P-410 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | SINGLE TURN SPIRAL |
| Peripheral Diameter | 1.530 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.870 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| BACS11BD2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-510-4269 is a Back-Up Ring,preformed Packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-692-9727. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-510-4269: Cross-Sectional Height: 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Material Document and Classification: ASTM D 4066 ASSN STD SINGLE MATERIAL RESPONSE OR L-P-410 FED SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: SINGLE TURN SPIRAL; Peripheral Diameter: 1.530 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN. 6 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.