The Retainer,packing, cataloged under National Stock Number 5330-01-112-7977, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-112-7977 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.690 INCHES NOMINAL IN |
| Attachment Feature Quantity | 2 |
| Cross-Sectional Height | 1.000 INCHES NOMINAL IN |
| Body Recess Diameter | 1.380 INCHES NOMINAL IN |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Criticality Code Justification | ZZZY |
| Rim Surface Width | 0.440 INCHES NOMINAL IN |
| Angle | 45.0 DEGREES NOMINAL |
| Peripheral Diameter | 4.120 INCHES NOMINAL IN |
| Center Hole Diameter | 0.880 INCHES NOMINAL IN |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY REQUIREMENT THAT ITEM BE FREE FROM MERCURY CONTAMINATION |
| Attachment Method | ROUND HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 820-4550970-1 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 5330-01-112-7977 is a Retainer,packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-220-7971. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-112-7977: Attachment Hole Diameter: 0.690 INCHES NOMINAL IN; Attachment Feature Quantity: 2; Cross-Sectional Height: 1.000 INCHES NOMINAL IN; Body Recess Diameter: 1.380 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.