The Screw,close Tolerance, cataloged under National Stock Number 5305-01-130-3560, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-130-3560 |
| Primary Part Number | HT4053-4-10A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | CETYL ALCOHOL LUBRICANT |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.390 INCHES MINIMUM AND 0.395 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 |
|---|---|
| HT4053-4-10A PRIMARY | Hi-Shear Corporation (USA) |
| HT4053-4-10A | West Coast Aerospace, Inc. (USA) |
| ST3M740-4L10 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M740-4L10 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| HT4053-4-10A | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4053-4-10A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4053-4-10A PRIMARY | Huck International, Inc (USA) |
| HT4053-4-10A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| HT4053-4-10A | 5/9 Secondary reference U.S. Government activity |
| HT4053-4-10 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4053-4-10A | 5/9 Secondary reference Sps Technologies Inc |
| ST3M740-4-10 | 5/9 Secondary reference The Boeing Company Div Defense |
| HT4053-4-10A | 3/2 Design control — primary reference U.S. Government activity |
| HT4053-4-10A | 3/2 Design control — primary reference U.S. Government activity |
| 10115241 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-130-3560 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-130-3560 has 8 manufacturer part numbers on file: HT4053-4-10A (Hi-Shear Corporation), HT4053-4-10A (West Coast Aerospace, Inc.), ST3M740-4L10 (The Boeing Company Div Defense), ST3M740-4L10 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), HT4053-4-10A (Sps Technologies Ltd, Tj Brooks Division) and 3 more.
Key specifications for HT4053-4-10A: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 22 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.