The Insert,screw Thread, cataloged under National Stock Number 5325-00-754-1816, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-754-1816 |
| Primary Part Number | 544003 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Length | 0.645 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Insert Size | 1/2 IN.-13 UNC OR NC CLASS 3A THD OR CLASS 3 FIT A |
| Style Designator | KEYLOCK |
| Top Unthreaded Portion Outside Diameter | 0.398 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Full Internal Thread Length | 0.395 INCHES MINIMUM IN |
| Top Portion Unthreaded Outside Length | 0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE 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 |
|---|---|
| 544003 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 5325PL2015026 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5325-00-754-1816 is a Insert,screw Thread, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-754-1816 has 1 manufacturer part number on file: 544003 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 544003: Length: 0.645 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN; Insert Size: 1/2 IN.-13 UNC OR NC CLASS 3A THD OR CLASS 3 FIT A; Style Designator: KEYLOCK; Top Unthreaded Portion Outside Diameter: 0.398 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN. 7 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.