The Insert,screw Thread, cataloged under National Stock Number 5325-01-023-4528, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Long-Lok Llc. Government technical data includes 8 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-023-4528 |
| Primary Part Number | T048L57 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Long-Lok Llc |
| Status | ACTIVE |
| Length | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Insert Size | 5/16-28 IN. UNF CLASS 3A A |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | INDIVIDUALLY KEYED |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| T048L57 PRIMARY | Long-Lok Llc (USA) |
| Reference | Meaning |
|---|---|
| 048281 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-01-023-4528 is a Insert,screw Thread, manufactured by Long-Lok Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-023-4528 has 1 manufacturer part number on file: T048L57 (Long-Lok Llc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-299-4395. Verify interchangeability with system specifications before substitution.
Key specifications for T048L57: Length: 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Insert Size: 5/16-28 IN. UNF CLASS 3A A; Style Designator: PLAIN. 8 specifications are 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.