NAS1291C4M
View detailed technical data, stock status, and sourcing information for: NAS1291C4M
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Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-894-3637
Item Name Code
29730
Assigment Date
01/01/1962 (64 years ago)
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.
prevailing torque all metal design locking feature, right-hand thread direction, 0.420 inches maximum washer outside diameter, 0.205 inches minimum and 0.219 inches maximum overall height, 3b thread class
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3b
- Thread Direction
- right-hand
- Locking Feature
- prevailing torque all metal design
- Washer Outside Diameter
- 0.420 inches maximum
- Overall Height
- 0.205 inches minimum and 0.219 inches maximum
- Nut Style
- hexagon
- Washer Thickness
- 0.019 inches minimum
- Width Across Flats
- 0.305 inches minimum and 0.316 inches maximum
- Temp Rating
- 550.0 fahrenheit nominal
- Thread Series
- unf
- Thread Quantity Per Inch
- 28
- Nominal Thread Size
- 0.250 inches
- Material
- steel corrosion resisting overall
- Surface Treatment
- passivate overall
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-00-050-6897 | No Name Available | 07/15/1968 |
| 5310-00-452-8749 | No Name Available | 10/01/1975 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 1138-161 | Extended Washer Self-Locking Nut |
| 457-5592 | Extended Washer Self-Locking Nut |
| 5310008943637 | Extended Washer Self-Locking Nut |
| 5310PL0671363 | Extended Washer Self-Locking Nut |
| 5310PL1932686 | Extended Washer Self-Locking Nut |
| 568-4-24347-004 | Extended Washer Self-Locking Nut |
| 860292-0008 | Extended Washer Self-Locking Nut |
| 860292-8 | Extended Washer Self-Locking Nut |
| 984040 | Extended Washer Self-Locking Nut |
| AS8650E | Extended Washer Self-Locking Nut |
| B69981 | Extended Washer Self-Locking Nut |
| FS10-0802903 | Extended Washer Self-Locking Nut |
| H42-4 | Extended Washer Self-Locking Nut |
| NAS1291C4M | Extended Washer Self-Locking Nut |
| P32334 | Extended Washer Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-894-3637?
The FSCG of the NSN 5310-00-894-3637 is 5310
Does the NSN 5310-00-894-3637 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-894-3637 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-00-894-3637 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-894-3637 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-00-894-3637 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- AS9120 Quality Standards
- 100% Quality Inspections
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Surplus | 2,013 |
| New Material | 124,776 |
| Serviceable | 1 |
| As Removed | 35 |
| Total | 126,825 |
Availability of this item was last updated on:
05/11/2026 03:05 PM EDT.
Stock levels and pricing are subject to change.