The Plate,retaining,seal, cataloged under National Stock Number 5340-00-912-0629, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Item Name | Plate,retaining,seal |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining (CAGE 13077) |
| Parameter | Value |
|---|---|
| NSN | 5340-00-912-0629 |
| Primary Part Number | 450550 |
| Item Name | Plate,retaining,seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 450550 PRIMARY | Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining (USA) |
| Reference | Meaning |
|---|---|
| 450550 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 450550 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-00-912-0629 is a Plate,retaining,seal, manufactured by Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-912-0629 has 1 manufacturer part number on file: 450550 (Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining).
1 possible match (shared part number, not a government interchangeability claim): 7045-00-980-8692. Verify interchangeability with system specifications before substitution.
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.