The Bolt,six Lobe Reces, cataloged under National Stock Number 5306-01-521-0865, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-521-0865 |
| Primary Part Number | NAS5321E4-6 |
| Item Name | Bolt,six Lobe Reces |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| NAS5321E4-6 | Ufc Aerospace Corp. (USA) |
| NAS5321E4-6 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| NAS5321E4-6 | Century Fasteners Corp (USA) |
| NAS5321E4-6 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| NAS5321E4-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| NAS5321E4-6 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| NAS5321E4-6 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| NAS5321E4-6 PRIMARY | Lfc Industries, Inc. (USA) |
| NAS5321E4-6 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| NAS5321E4-6 | 3/2 Design control — primary reference U.S. Government activity |
| NAS5321E4-6 | 5/9 Secondary reference Advance Aero-Tech, Inc. |
| NAS5321E4-6 | 5/2 Secondary reference U.S. Government activity |
| 120-268E4-6 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-521-0865 is a Bolt,six Lobe Reces, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-521-0865 has 9 manufacturer part numbers on file: NAS5321E4-6 (Ufc Aerospace Corp.), NAS5321E4-6 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), NAS5321E4-6 (Century Fasteners Corp), NAS5321E4-6 (Heartland Precision Fasteners Inc), NAS5321E4-6 (Howmet Global Fastening Systems Inc) and 4 more.
Key specifications for NAS5321E4-6: Criticality Code Justification: AGAV; End Item Identification: MV-22 AIRCRAFT (V-22 LRIP 1 E-NSN ISIL). 1 specification is 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.