The Setscrew, cataloged under National Stock Number 5305-01-045-8953, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Nylok Llc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-045-8953 |
| Primary Part Number | NM274CR720K13E |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Nylok Llc |
| Status | ACTIVE |
| Width Across Flats | 0.219 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN |
| Fastener Length | 0.810 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.810 INCHES NOMINAL IN |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| NM274CR720K13E PRIMARY | Nylok Llc (USA) |
| 532611-3 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 532611-3 | H-K Connecticut Holding Company (USA) |
| Reference | Meaning |
|---|---|
| M74CR72013E | 5/9 Secondary reference Nylok Llc |
| 532611-3 | 1/2 Source control — Government-approved source U.S. Government activity |
| 532611-3 | 5/2 Secondary reference U.S. Government activity |
| 5305PL2039162 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5305-01-045-8953 is a Setscrew, manufactured by Nylok Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-045-8953 has 3 manufacturer part numbers on file: NM274CR720K13E (Nylok Llc), 532611-3 (Sps Technologies, Llc Dba PB Fasteners), 532611-3 (H-K Connecticut Holding Company).
Key specifications for NM274CR720K13E: Width Across Flats: 0.219 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN; Fastener Length: 0.810 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.810 INCHES NOMINAL IN. 15 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.