The Buffer,antifreezing, cataloged under National Stock Number 5340-01-584-4891, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney H.a.c., Inc.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-584-4891 |
| Primary Part Number | 150-044-C50-E25 |
| Item Name | Buffer,antifreezing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Pratt & Whitney H.a.c., Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 150-044-C50-E25 | Pratt & Whitney H.a.c., Inc. (USA) |
| 150-044-C50-E25 | Fore Machine Company, Inc. (USA) |
| 150-044-C50-E25 | Aviation Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 150-044-1 | 5/9 Secondary reference Fore Machine Company, Inc. |
| 150-044-C50-E25 | 5/9 Secondary reference Hytek Finishes Co Dba Hytek |
| 150-044-C50-E25 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-584-4891 is a Buffer,antifreezing, manufactured by Pratt & Whitney H.a.c., Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-584-4891 has 3 manufacturer part numbers on file: 150-044-C50-E25 (Pratt & Whitney H.a.c., Inc.), 150-044-C50-E25 (Fore Machine Company, Inc.), 150-044-C50-E25 (Aviation Products Inc).
Key specifications for 150-044-C50-E25: Overall Length: 4.250 INCHES NOMINAL IN; Overall Width: 2.500 INCHES NOMINAL IN; Special Features: FABRIC, POLYTETRAFLUOROETHYLENE/DACRON, PHENOLIC RESIN BASE TREATED; End Item Identification: AH-1Z VIPER AND UH-1Y HUEY HELICOPTERS. 0 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.
NSN 5340-01-584-4891 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.