The Insert,screw Thread, cataloged under National Stock Number 5325-01-201-2507, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-201-2507 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Length | 3.000 INCHES NOMINAL IN |
| Flange Thickness | 0.250 INCHES NOMINAL IN |
| Insert Size | 0.875-12 UN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | QQ-B-626,COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Quantity Per Inch | 20 |
| Material | COPPER ALLOY 360 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| S4824-3129376 PC 4 | 5/1 Secondary reference U.S. Government activity |
| NMP-708PC4 | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| NMP-249 PC 4 | 3/9 Design control — primary reference Kunkle Industries Inc Lonergan Valve Div |
NSN 5325-01-201-2507 is a Insert,screw Thread, classified under FSC 5325, Fastening Devices. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-372-3195. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-01-201-2507: Width Across Flats: 0.875 INCHES NOMINAL IN; Length: 3.000 INCHES NOMINAL IN; Flange Thickness: 0.250 INCHES NOMINAL IN; Insert Size: 0.875-12 UN. 11 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.
NSN 5325-01-201-2507 has DEMIL Code F. 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.