The Screw,close Tolerance, cataloged under National Stock Number 5305-01-328-9227, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-328-9227 |
| Primary Part Number | 03A225-3-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 0.660 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Thread Length | 0.363 INCHES NOMINAL IN |
| Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 129.0 DEGREES MINIMUM AND 131.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.3825 INCHES MINIMUM AND 0.3911 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 |
|---|---|
| 03A225-3-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 03A225-3-5 | Huck International, Inc. Div Huck Products Division (USA) |
| 03A225-3-5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 03A225-3-5 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 03A225-3-5 | Hi-Shear Corporation (USA) |
| 03A225-3-5 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| 03A225-3-5 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| PBF1484-3-5 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| SC5027-3-5 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| AIC1700-3-5 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| 03A225-3-5 | 5/9 Secondary reference Sps Technologies Inc |
| DF33001V-3T-5 | 5/9 Secondary reference U.S. Government activity |
| DF33001V-3T-5 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc. Div Huck Products Division |
| 123992-3-5 | 5/9 Secondary reference U.S. Government activity |
| SLB212-3-5 | 5/9 Secondary reference Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| DF3301V-3T-5 | 5/9 Secondary reference U.S. Government activity |
| 123992-3-5 | 5/9 Secondary reference Sps Technologies Inc |
| HR246-3-5 | 5/9 Secondary reference Hi-Shear Corporation |
NSN 5305-01-328-9227 is a Screw,close Tolerance, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-328-9227 has 7 manufacturer part numbers on file: 03A225-3-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 03A225-3-5 (Huck International, Inc. Div Huck Products Division), 03A225-3-5 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 03A225-3-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 03A225-3-5 (Hi-Shear Corporation) and 2 more.
Key specifications for 03A225-3-5: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 0.660 INCHES MINIMUM AND 0.690 INCHES MAXIMUM 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.