The Snubber, cataloged under National Stock Number 5340-01-478-5239, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is O'keefe Controls Co.. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-478-5239 |
| Primary Part Number | HP-8-SS |
| Item Name | Snubber |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | O'keefe Controls Co. |
| Status | ACTIVE |
| General Characteristics Item Description | WIDTH ACROSS FLATS - 1.062; OUTSIDE THREADS - 0.50-14 NPT; INSIDE THREADS - 0.50-14 NPT |
| 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 |
|---|---|
| HP-8-SS | O'keefe Controls Co. (USA) |
| Reference | Meaning |
|---|---|
| HP-E-SS | 5/9 Secondary reference O'keefe Controls Co. |
| 524753-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-478-5239 is a Snubber, manufactured by O'keefe Controls Co., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-478-5239 has 1 manufacturer part number on file: HP-8-SS (O'keefe Controls Co.).
Key specifications for HP-8-SS: General Characteristics Item Description: WIDTH ACROSS FLATS - 1.062; OUTSIDE THREADS - 0.50-14 NPT; INSIDE THREADS - 0.50-14 NPT; Overall Length: 1.690 INCHES NOMINAL IN; End Item Identification: HELICOPTER LANDING SYSTEM. 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.