The Retainer,packing, cataloged under National Stock Number 5330-01-251-4743, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-251-4743 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Cross-Sectional Height | 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Cross-Sectional Shape Style | CUP |
| Angle | 23.5 DEGREES MINIMUM AND 24.5 DEGREES MAXIMUM |
| Peripheral Diameter | 6.125 INCHES MINIMUM AND 6.130 INCHES MAXIMUM IN |
| Center Hole Diameter | 5.382 INCHES MINIMUM AND 5.392 INCHES MAXIMUM IN |
| Material | STEEL COMP 1005 AND STEEL COMP 1012 OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 820-6015895 | 5/1 Secondary reference U.S. Government activity |
| 820-6015895-140-1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 820-6015895-140-1 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5330-01-251-4743 is a Retainer,packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5330-01-255-3383, 5330-01-255-7673, 5330-01-257-8052. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-251-4743: Cross-Sectional Height: 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Cross-Sectional Shape Style: CUP; Angle: 23.5 DEGREES MINIMUM AND 24.5 DEGREES MAXIMUM. 8 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.