The Seal Assembly,plain, cataloged under National Stock Number 5330-00-201-9976, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-201-9976 |
| Primary Part Number | A52931 |
| Item Name | Seal Assembly,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Eaton Corporation Dba Eaton Inoac Div Eaton |
| Status | ACTIVE |
| General Characteristics Item Description | 2.251 IN. MIN 2.253 IN. MAX OD,0.602 IN. MIN FREE LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A52931 PRIMARY | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
| 156631 | Alnitak Corporation (USA) |
| 52931 | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
| Reference | Meaning |
|---|---|
| 5018T48P01 | 1/2 Source control — Government-approved source U.S. Government activity |
| 5293-1 | 5/9 Secondary reference U.S. Government activity |
| 5293-1 | 5/1 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
NSN 5330-00-201-9976 is a Seal Assembly,plain, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-201-9976 has 3 manufacturer part numbers on file: A52931 (Eaton Corporation Dba Eaton Inoac Div Eaton), 156631 (Alnitak Corporation), 52931 (Eaton Corporation Dba Eaton Inoac Div Eaton).
5 possible matches (shared part number, not a government interchangeability claim): 5325-00-367-4389, 5340-00-692-6843, 5330-00-767-5636. Verify interchangeability with system specifications before substitution.
Key specifications for A52931: General Characteristics Item Description: 2.251 IN. MIN 2.253 IN. MAX OD,0.602 IN. MIN FREE LG IN. 1 specification is 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.