139JA3
View detailed technical data, stock status, and sourcing information for: 139JA3
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A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
2b thread class, hexagon nut style, 0.258 inches minimum and 0.273 inches maximum nut height, right-hand thread direction, mrap buffalo mk2a2 end item identification
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 2b
- Thread Direction
- right-hand
- Nut Style
- hexagon
- Nut Height
- 0.258 inches minimum and 0.273 inches maximum
- End Item Identification
- mrap buffalo mk2a2
- Width Across Flats
- 0.489 inches minimum and 0.500 inches maximum
- Thread Series
- unc
- Thread Quantity Per Inch
- 18
- Hardness Rating
- 121.0 brinell standard minimum
- Nominal Thread Size
- 0.312 inches
- Bearing Surface Type
- chamfered or washer faced
- Material
- steel overall
- Surface Treatment
- zinc overall
- Surface Treatment Document And Classification
- sae/ams or astm b633 assn std single treatment response overall
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-00-176-8160 | No Name Available | 04/29/1966 |
| 5310-00-208-7639 | No Name Available | 09/11/1970 |
| 5310-00-266-0386 | No Name Available | 09/01/2023 |
| 5310-00-543-4972 | No Name Available | 09/01/2019 |
| 5310-00-655-6744 | No Name Available | 09/01/2023 |
| 5310-00-821-3495 | No Name Available | 08/03/1980 |
| 5310-00-914-7232 | No Name Available | 09/01/2023 |
| 5310-01-003-8477 | No Name Available | 01/01/1976 |
| 5310-01-017-3842 | No Name Available | 05/01/1990 |
| 5310-01-049-2767 | No Name Available | 09/01/1980 |
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 |
|---|---|
| 012316-8 | Hexagon Plain Nut |
| 02251213-NSL | Hexagon Plain Nut |
| 07-1008 | Hexagon Plain Nut |
| 0F44-0599-00 | Hexagon Plain Nut |
| 139JA3 | Hexagon Plain Nut |
| 16A4C2 | Hexagon Plain Nut |
| 251262 | Hexagon Plain Nut |
| 33102-013-AB | Hexagon Plain Nut |
| 331203 | Hexagon Plain Nut |
| 4000774 | Hexagon Plain Nut |
| 5310008807744 | Hexagon Plain Nut |
| 5310PL0699080 | Hexagon Plain Nut |
| 61D5H | Hexagon Plain Nut |
| 7-660-150000 | Hexagon Plain Nut |
| 801625-551-003 PC-35C | Hexagon Plain Nut |
| 853707-00 | Hexagon Plain Nut |
| 862-1015 | Hexagon Plain Nut |
| 8804101 | Hexagon Plain Nut |
| 911C208-16 | Hexagon Plain Nut |
| 9414034 | Hexagon Plain Nut |
| AN335-5 | Hexagon Plain Nut |
| D05 | Hexagon Plain Nut |
| G9417954 | Hexagon Plain Nut |
| L6611-2 | Hexagon Plain Nut |
| MS51967 | Hexagon Plain Nut |
| MS51967-5-5/16INX18-UNC-2BX1/2IN | Hexagon Plain Nut |
| NUT529 | Hexagon Plain Nut |
| SK-1001-9 | Hexagon Plain Nut |
| SPE-61-19 | Hexagon Plain Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-880-7744?
Does the NSN 5310-00-880-7744 have a Schedule B code assigned?
Does NSN 5310-00-880-7744 require demilitarization?
Does NSN 5310-00-880-7744 contain precious materials?
Does NSN 5310-00-880-7744 contain hazardous materials?
When the NSN 5310-00-880-7744 was assigned to the Federal Catalog?
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Pricing
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