| Item Name | Kingpin Fifth Wheel |
| Federal Supply Group (FSG) | Vehicular Equipment Components |
| Federal Supply Class (FSC) | 2510 Vehicular Cab Body and Frame Structural Components |
| National Item Identification Number (NIIN) | 01-109-7054 (011097054) |
| NCB Code | USA (01) |
| Manufacturer | Military Standards Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASU | HEAD HEIGHT | 0.563 INCHES NOMINAL |
| ABKU | FLANGE THICKNESS | 1.000 INCHES NOMINAL |
| ABTB | MOUNTING HOLE DIAMETER | 0.125 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM |
| ACST | MOUNTING END TYPE | FLANGE |
| ADAQ | BODY LENGTH | 1.187 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 4.485 INCHES MINIMUM AND 4.490 INCHES MAXIMUM |
| ADML | MOUNTING FLANGE BOLT HOLE QUANTITY | 4 |
| AETC | METALLIC HARDNESS RATING | 52.0 MINIMUM ROCKWELL C AND 60.0 MAXIMUM ROCKWELL C |
| AGPW | HEAD OUTSIDE DIAMETER | 4.360 INCHES MINIMUM AND 4.390 INCHES MAXIMUM |
| AHTC | FLANGE OUTSIDE DIAMETER | 11.940 INCHES MINIMUM AND 12.060 INCHES MAXIMUM |
| AKRS | PIN LENGTH | 3.375 INCHES NOMINAL |
| ALXY | MOUNTING HOLE SPACING | EQUALLY SPACED ON 8-1/2 IN. BOLT CIRCLE |
| ARKN | FLANGE SHAPE | ROUND |
| BSCK | LOCKING RECESS OUTSIDE DIAMETER | 3.495 INCHES MINIMUM AND 3.505 INCHES MAXIMUM |
| BTQS | LOCKING RECESS LENGTH | 1.500 INCHES NOMINAL |
| MATT | MATERIAL | STEEL |
| STYL | STYLE DESIGNATOR | LOCKING RECESS |
| Relevant Components for NSN - 2510-01-109-7054, 2510011097054 | ||||
| 2530-00-846-7955 (2530008467955) | 2510-01-557-5591 (2510015575591) | 2590-01-556-6773 (2590015566773) | 2520-00-570-5557 (2520005705557) | |
| 2520-00-577-4353 (2520005774353) | 2520-00-422-9975 (2520004229975) | 2530-00-927-5461 (2530009275461) | 2590-00-238-3632 (2590002383632) | |
| 2510-00-846-9598 (2510008469598) | 2530-00-678-6128 (2530006786128) | 2530-01-269-6676 (2530012696676) | 2530-01-444-0721 (2530014440721) | |
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