The Fastener,panel, cataloged under National Stock Number 5325-01-127-7235, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5325-01-127-7235 |
| Primary Part Number | BS0S-440-12 |
| Item Name | Fastener,panel |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,AISI 303,PASSIVATED; INTERNAL THREAD SIZE 4-40 UNC 2B; 0.160 IN. MIN,0.165 IN. MAX OD; 0.380 IN. LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| GS500H04C12 | Northrop Grumman Systems Corporation (USA) |
| BS0S-440-12 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| 3595270-2 | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| Reference | Meaning |
|---|---|
| 0N220706-10 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 048722 | 7/2 Vendor item drawing reference U.S. Government activity |
| 1A8339 | 7/2 Vendor item drawing reference U.S. Government activity |
| 4245263-002 | 7/9 Vendor item drawing reference Ail Systems Inc Sub of Eaton Corp |
| 5924375-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 34NBS-EXR-12 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-127-7235 is a Fastener,panel, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-127-7235 has 3 manufacturer part numbers on file: GS500H04C12 (Northrop Grumman Systems Corporation), BS0S-440-12 (Penn Engineering & Manufacturing Corp), 3595270-2 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-594-5232. Verify interchangeability with system specifications before substitution.
Key specifications for BS0S-440-12: General Characteristics Item Description: STEEL,AISI 303,PASSIVATED; INTERNAL THREAD SIZE 4-40 UNC 2B; 0.160 IN. MIN,0.165 IN. MAX OD; 0.380 IN. LG IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.