The Screw,machine, cataloged under National Stock Number 5305-01-132-2158, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-132-2158 |
| Primary Part Number | 3M933-3-49 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Screw Surface Treatment | ALUMINUM AND CHROMATE |
| Fastener Length | 3.046 INCHES MINIMUM AND 3.093 INCHES MAXIMUM IN |
| Screw Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE |
| Thread Length | 1.750 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.305 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Screw Material | STEEL COMP E4340 OR STEEL COMP 8740 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Hole Quantity | 3 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Hole Configuration Style | HEXAGON CORNERS |
| Hole Diameter | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | MIL-C-83488 TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| 123630-3-49 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SC2671-3-49 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| SC2671-3-49 | Howmet Global Fastening Systems Inc (USA) |
| SC2671-3-49 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M933-3-49 PRIMARY | The Boeing Company Div Defense (USA) |
| SC2671-3-49 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC944-3-49 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF1580-3-49 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 3M933-3-49 | 5/9 Secondary reference U.S. Government activity |
| SC2671-3-49 | 5/2 Secondary reference U.S. Government activity |
| SC2671-3-49 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div |
| 10115318 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MA5933-3-49 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| IAM9336-3-49 | 5/9 Secondary reference First American Sales Co Inc |
| 3M933-3-49 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| SC2671-3-49 | 5/9 Secondary reference U.S. Government activity |
| SC2671-3-49 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5305-01-132-2158 is a Screw,machine, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-132-2158 has 8 manufacturer part numbers on file: 123630-3-49 (Sps Technologies, Llc Dba PB Fasteners), SC2671-3-49 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), SC2671-3-49 (Howmet Global Fastening Systems Inc), SC2671-3-49 (Sps Technologies, Llc Dba PB Fasteners), 3M933-3-49 (The Boeing Company Div Defense) and 3 more.
Key specifications for 3M933-3-49: Head Height: 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Screw Surface Treatment: ALUMINUM AND CHROMATE; Fastener Length: 3.046 INCHES MINIMUM AND 3.093 INCHES MAXIMUM IN; Screw Material Document and Classification: MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE. 19 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.