The Screw,shoulder, cataloged under National Stock Number 5305-01-047-0474, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-047-0474 |
| Primary Part Number | ST3M495-3-11-1 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc |
| Status | ACTIVE |
| Fastener Length | 1.004 INCHES MINIMUM AND 1.034 INCHES MAXIMUM IN |
| Shoulder Length | 0.628 INCHES MINIMUM AND 0.656 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.306 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.327 INCHES MINIMUM AND 0.332 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 |
|---|---|
| ST3M495-3-11-1 PRIMARY | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4016-3-11X | 5/9 Secondary reference Hi-Shear Corporation |
| ST3M495-3-11-1 | 5/9 Secondary reference U.S. Government activity |
| ST3MM495-3-11-1 | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| HT4016-3-11X | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| HT4016-3-11X | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| ST3M495-3-11-1 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 11911-3-11-1 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| HT4016-3-11X | 5/9 Secondary reference U.S. Government activity |
| HT4016-3-11X | 5/9 Secondary reference Huck International, Inc |
| ST3M495-3-11-1 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4016-3-11X | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4016-3-11X | 5/9 Secondary reference U.S. Government activity |
| HT4016-3-11X | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-047-0474 is a Screw,shoulder, manufactured by Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-047-0474 has 1 manufacturer part number on file: ST3M495-3-11-1 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc).
Key specifications for ST3M495-3-11-1: Fastener Length: 1.004 INCHES MINIMUM AND 1.034 INCHES MAXIMUM IN; Shoulder Length: 0.628 INCHES MINIMUM AND 0.656 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Diameter: 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN. 18 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.