The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-213-4832, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-213-4832 |
| Primary Part Number | G18421PL4-4-8 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Surface Treatment Document and Classification | MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Quantity | 72 |
| Removable Nut Manufacturer Part Number | ST3M445C4M4 |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL |
| Material Document and Classification | AMS 5510JGAAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.225 INCHES MINIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Channel Height | 0.298 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.254 INCHES MINIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.466 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OR COPPER NUT |
| Surface Treatment | PLASTIC CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Nut Spacing | 1.000 INCHES NOMINAL IN |
| Channel Style | STRAIGHT TYPE |
| Removable Nut Manufacturer Code | 76301 |
| 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 |
|---|---|
| G18421PL4-4-8 PRIMARY | Esna, Llc (USA) |
| 3M464C8H72-3 | Howmet Global Fastening Systems Inc (USA) |
| 3M464C8A72-4P | The Boeing Company Div Defense (USA) |
| 3M464C8H72-3 | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| 3M464C8H72-3 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-213-4832 is a Nut Assembly,self-Locking,gang C, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-213-4832 has 4 manufacturer part numbers on file: G18421PL4-4-8 (Esna, Llc), 3M464C8H72-3 (Howmet Global Fastening Systems Inc), 3M464C8A72-4P (The Boeing Company Div Defense), 3M464C8H72-3 (Bristol Industries, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-213-4833. Verify interchangeability with system specifications before substitution.
Key specifications for G18421PL4-4-8: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Nut Quantity: 72. 23 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.