| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-710-9429 (007109429) |
| NCB Code | USA (00) |
| Manufacturer | Bell Helicopter Textron Inc, Lockheed Martin Corporation, Pyramid Machine Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 204-040-253-001 | bell helicopter textron inc | washer key | 97499 | RFQ |
| 204-040-253-1 | bell helicopter textron inc | washer key | 97499 | RFQ |
| 204-040-253-1 | lockheed martin corporation | washer key | 80070 | RFQ |
| 204-040-253-1 | pyramid machine corp | washer key | 17128 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 4.255 INCHES MINIMUM AND 4.265 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 4.610 INCHES NOMINAL |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.170 INCHES NOMINAL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.200 INCHES NOMINAL |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.180 INCHES NOMINAL |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 2.065 INCHES MINIMUM AND 2.085 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 5.000 INCHES NOMINAL |
| ABMQ | EXTERNAL KEY QUANTITY | 19 |
| ABMR | INTERNAL KEY QUANTITY | 2 |
| ABPX | MATERIAL THICKNESS | 0.050 INCHES NOMINAL |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 24.5 DEGREES MINIMUM AND 25.5 DEGREES MAXIMUM |
| FEAT | SPECIAL FEATURES | EXTERNAL KEYS BENT 25 DEG |
| MATT | MATERIAL | STEEL OR STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6357 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | OXIDE FILM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BPSFW4084,FSCM 97499 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | EXTERNAL AND INTERNAL PRE-BENT KEYS |
| Relevant Components for NSN - 5310-00-710-9429, 5310007109429 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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