The Insert,screw Thread, cataloged under National Stock Number 5325-01-529-3900, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Howmet Global Fastening Systems Inc. Div Tridair Products (CAGE 29372); Acme Industrial Co Div Acme Industrial Company (CAGE 00175) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-529-3900 |
| Primary Part Number | RKK1 1/2-12 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| RKK1 1/2-12 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 66116 | Acme Industrial Co Div Acme Industrial Company (USA) |
NSN 5325-01-529-3900 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-529-3900 has 2 manufacturer part numbers on file: RKK1 1/2-12 (Howmet Global Fastening Systems Inc. Div Tridair Products), 66116 (Acme Industrial Co Div Acme Industrial Company).
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-566-0490, 5136-01-625-2689. Verify interchangeability with system specifications before substitution.
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.