The Stud,stepped, cataloged under National Stock Number 5307-01-708-2124, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is C E Niehoff & Co. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-708-2124 |
| Primary Part Number | N9857 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | C E Niehoff & Co |
| Status | ACTIVE |
| Thread Length | 0.80 INCHES NOMINAL NUT THREAD A IN |
| Thread Length | 1.20 INCHES NOMINAL NUT THREAD B IN |
| Thread Direction | RIGHT-HAND NUT THREAD A |
| Thread Direction | RIGHT-HAND NUT THREAD B |
| Nominal Thread Size | 0.375 INCHES NUT THREAD B IN |
| Nominal Thread Size | 0.500 INCHES NUT THREAD A IN |
| Thread Class | 2A NUT THREAD A A |
| Thread Class | 2A NUT THREAD B A |
| Thread Quantity Per Inch | 16 NUT THREAD B |
| Thread Quantity Per Inch | 13 NUT THREAD A |
| Material | COPPER ALLOY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD A |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD B |
| 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 |
|---|---|
| N9857 PRIMARY | C E Niehoff & Co (USA) |
NSN 5307-01-708-2124 is a Stud,stepped, manufactured by C E Niehoff & Co, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-708-2124 has 1 manufacturer part number on file: N9857 (C E Niehoff & Co).
Key specifications for N9857: Thread Length: 0.80 INCHES NOMINAL NUT THREAD A IN; Thread Length: 1.20 INCHES NOMINAL NUT THREAD B IN; Overall Length: 2.00 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND NUT THREAD A. 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.