The Retainer,packing, cataloged under National Stock Number 5330-00-677-1590, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 9 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 | 5330-00-677-1590 |
| Primary Part Number | B9432-1 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.187 INCHES NOMINAL IN |
| Attachment Feature Quantity | 8 |
| Cross-Sectional Height | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | FLANGE |
| Attachment Feature Circle Diameter | 5.620 INCHES MINIMUM AND 5.630 INCHES MAXIMUM SINGLE CIRCLE IN |
| Peripheral Diameter | 6.235 INCHES MINIMUM AND 6.265 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.125 INCHES MINIMUM AND 4.140 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY OVERALL |
| 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 | X |
NSN 5330-00-677-1590 is a Retainer,packing, manufactured by Grimes Aerospace Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-677-1590 has 2 manufacturer part numbers on file: B9432-1 (Aero International, Llc Dba Ams Engineered Solutions), B9432-1 (Grimes Aerospace Company).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-178-4331. Verify interchangeability with system specifications before substitution.
Key specifications for B9432-1: Attachment Hole Diameter: 0.187 INCHES NOMINAL IN; Attachment Feature Quantity: 8; Cross-Sectional Height: 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN; Cross-Sectional Shape Style: FLANGE. 9 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.