The Nut,plain,round, cataloged under National Stock Number 5310-00-150-3624, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-150-3624 |
| Primary Part Number | 678337 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2412 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Precious Material | SILVER |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6323 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.938 INCHES IN |
| Nut Diameter | 1.260 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN |
| Drive Point Depth | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Nut Thickness | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Countersink Angle | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM NUT |
| Drive Point Quantity | 16 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8740 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 |
|---|---|
| 678337 | Kito Mfg Co. Ltd (JPN) |
| 678337 | Moeller Mfg. Company, Llc Div Aircraft (USA) |
| 678337 | Northrop Grumman Innovation Systems Llc Div Ngis (USA) |
| 678337 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 678337 | 5/9 Secondary reference Kwik File Storage Systems Llc |
| 678337 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 678337 | 5/9 Secondary reference Kito Mfg Co. Ltd |
| 678337 | 5/9 Secondary reference Alliant Techsystems Inc |
NSN 5310-00-150-3624 is a Nut,plain,round, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-150-3624 has 4 manufacturer part numbers on file: 678337 (Kito Mfg Co. Ltd), 678337 (Moeller Mfg. Company, Llc Div Aircraft), 678337 (Northrop Grumman Innovation Systems Llc Div Ngis), 678337 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 678337: Surface Treatment Document and Classification: AMS 2412 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UN; Precious Material: SILVER; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 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.