The Insert,screw Thread, cataloged under National Stock Number 5325-00-929-8516, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-929-8516 |
| Primary Part Number | 6854937-2 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Length | 0.544 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Flange Thickness | 0.064 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Insert Size | 0.4375-20 UNS |
| Nominal Thread Size | 0.250 INCHES IN |
| Slot Depth | 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Countersink Angle | 90.0 DEGREES NOMINAL |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Slot Width | 0.062 INCHES MINIMUM AND 0.072 INCHES MAXIMUM 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 |
|---|---|
| 6854937-2 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6854937-2 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5325-00-929-8516 is a Insert,screw Thread, manufactured by Rolls-Royce Corporation, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-929-8516 has 1 manufacturer part number on file: 6854937-2 (Rolls-Royce Corporation).
Key specifications for 6854937-2: Width Across Flats: 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Length: 0.544 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN; Flange Thickness: 0.064 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Insert Size: 0.4375-20 UNS. 10 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.