The Insert,screw Thread, cataloged under National Stock Number 5325-01-096-9505, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-096-9505 |
| Primary Part Number | 4491-5CN0427 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Length | 7.875 INCHES NOMINAL IN |
| Insert Size | 0.380 IN. MIN,0.400 IN. MAX IN |
| Style Designator | COIL |
| Material Document and Classification | AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.3125 INCHES IN |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| ST2254-25 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4491-5CN0427 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 4491-5CN0427 | 5/9 Secondary reference New Haven Mfg Corp |
NSN 5325-01-096-9505 is a Insert,screw Thread, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-096-9505 has 2 manufacturer part numbers on file: ST2254-25 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4491-5CN0427 (Lockheed Martin Corporation Div Rms).
Key specifications for 4491-5CN0427: Length: 7.875 INCHES NOMINAL IN; Insert Size: 0.380 IN. MIN,0.400 IN. MAX IN; Style Designator: COIL; Material Document and Classification: AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.