The Stud,self-Locking, cataloged under National Stock Number 5307-01-021-1561, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Pics Screw Machine, Inc. Dba Pics Screw Machine Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-021-1561 |
| Primary Part Number | NCS6-6-24 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Pics Screw Machine, Inc. Dba Pics Screw Machine Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | SELF-LOCKING |
| Nominal Thread Size | 0.138 INCHES NUT THREAD IN |
| Head Length | 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN |
| Locking Feature | HEAD DISTORTIONS |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Distance Across Flats | 0.250 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.187 INCHES MINIMUM AND 0.201 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 |
|---|---|
| NCS6-6-24 PRIMARY | Pics Screw Machine, Inc. Dba Pics Screw Machine Inc (USA) |
| Reference | Meaning |
|---|---|
| ST5H014-4D8 | 5/9 Secondary reference Northrop Grumman Corp Electronic Systems Defensive System Div |
NSN 5307-01-021-1561 is a Stud,self-Locking, manufactured by Pics Screw Machine, Inc. Dba Pics Screw Machine Inc, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-021-1561 has 1 manufacturer part number on file: NCS6-6-24 (Pics Screw Machine, Inc. Dba Pics Screw Machine Inc).
Key specifications for NCS6-6-24: Surface Treatment Document and Classification: MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM NUT THREAD IN; Style Designator: SELF-LOCKING; Nominal Thread Size: 0.138 INCHES NUT THREAD IN. 12 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.