The Insert,screw Thread, cataloged under National Stock Number 5325-01-477-7333, 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. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-477-7333 |
| Primary Part Number | KNH-624J-16 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Thread Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Insert Size | 0.5625-12 UNC 2A A |
| Style Designator | GROOVED KEYLOCK |
| Internal Thread Relief Depth | 0.069 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.5625 INCHES IN |
| Full Internal Thread Length | 0.930 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 7748896-1 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| KNH-624J-16 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| KH9905-616 PRIMARY | Howmet Global Fastening Systems Inc. Div Microdot Products (USA) |
| 7748895 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| KH9905-C-16 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
NSN 5325-01-477-7333 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-477-7333 has 4 manufacturer part numbers on file: 7748896-1 (U S Army Tank Automotive Command Amsta-Im-Mm), KNH-624J-16 (Howmet Global Fastening Systems Inc. Div Tridair Products), KH9905-616 (Howmet Global Fastening Systems Inc. Div Microdot Products), 7748895 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-554-5628. Verify interchangeability with system specifications before substitution.
Key specifications for KNH-624J-16: Length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Thread Length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Insert Size: 0.5625-12 UNC 2A A; Style Designator: GROOVED KEYLOCK. 13 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.