The Nut,self-Locking,gang Channel, cataloged under National Stock Number 5310-00-451-9627, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-451-9627 |
| Primary Part Number | CN39971-3 |
| Item Name | Nut,self-Locking,gang Channel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Nut Length | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Base Width | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Countersink Angle | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM NUT |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3BG |
| Base Thickness | 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| 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 |
|---|---|
| CN39971-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 677824 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 677825 | C/1 Advisory reference — outside the item-of-supply concept Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 677822 | 5/9 Secondary reference Harvard Industries Inc |
| 677824 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 677823 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 677822 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 677822 | D/9 Drawing number reference only Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 677823 | 5/9 Secondary reference Harvard Industries Inc |
| 72442-1032 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| G10470-3K | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-451-9627 is a Nut,self-Locking,gang Channel, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-451-9627 has 2 manufacturer part numbers on file: CN39971-3 (Howmet Global Fastening Systems Inc), 677824 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for CN39971-3: Nut Length: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 15 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.