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| Item Name | Bolt Fluid Passage |
| Federal Supply Group (FSG) | Pipe Tubing Hose and Fittings |
| Federal Supply Class (FSC) | 4730 Hose Pipe Tube Lubrication and Railing Fittings |
| National Item Identification Number (NIIN) | 00-756-2256 (007562256) |
| NCB Code | USA (00) |
| Manufacturer | Collins Engineering Corp, Tech Aero Inc, National Aerospace Standards Com, Snark Products Inc, Finmeccanica Spa Helicopters |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS551-4H | collins engineering corp | bolt fluid passage | RFQ |
| NAS551-4H | tech aero inc | bolt fluid passage | RFQ |
| NAS551-4H | national aerospace standards com | bolt fluid passage | RFQ |
| NAS551-4H | snark products inc | bolt fluid passage | RFQ |
| NAS551-4H | finmeccanica spa helicopters | bolt fluid passage | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAWX | CONCENTRIC HOLE DEPTH | 0.937 INCHES NOMINAL |
| ACKM | FIRST END CONNECTION TYPE | THREADED EXTERNAL TUBE |
| ACKN | FIRST END STYLE DESIGNATOR | INVERTED FLARE |
| ASDB | WIDTH ACROSS FLATS | 0.688 INCHES NOMINAL |
| BBKL | FIRST DIAMETER FROM WRENCHING FEATURE | 0.435 INCHES NOMINAL |
| BBKR | LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER | 0.781 INCHES NOMINAL |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| CQYM | FIRST END NOMINAL THREAD SIZE | 0.437 INCHES |
| MATT | MATERIAL | STEEL |
| SFTT | SURFACE TREATMENT | CADMIUM |
| AAQL | BODY STYLE | PLAIN |
| AAXC | CONCENTRIC HOLE DIAMETER | 0.172 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 1.375 INCHES NOMINAL |
| ACLK | FIRST END THREAD CLASS | 3A |
| ACLL | FIRST END THREAD DIRECTION | RIGHT-HAND |
| ATKZ | FIRST END THREAD LENGTH | 0.406 INCHES NOMINAL |
| BBDF | WRENCHING FEATURE STYLE | HEXAGON |
| BBKY | FIRST RADIAL FLUID HOLE DIAMETER | 0.172 INCHES NOMINAL |
| BBLB | DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT | 0.796 INCHES NOMINAL |
| BBLD | LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO BOLT END | 1.187 INCHES NOMINAL |
| BBLF | WRENCHING FEATURE HEIGHT | 0.188 INCHES NOMINAL |
| CQMM | FIRST END THREAD SERIES DESIGNATOR | UNF |
| CQPR | FIRST END SEAT ANGLE | 45.0 DEGREES NOMINAL |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS551 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Relevant Components for NSN - 4730-00-756-2256, 4730007562256 | ||||
| 4720-01-543-9256 (4720015439256) | 4710-00-020-8209 (4710000208209) | 4720-00-236-2575 (4720002362575) | 4730-01-600-6309 (4730016006309) | |
| 4720-01-428-9860 (4720014289860) | 4720-01-352-6034 (4720013526034) | 4730-00-554-8091 (4730005548091) | 4710-00-815-6041 (4710008156041) | |
| 4730-01-612-5310 (4730016125310) | 4730-01-199-6545 (4730011996545) | 4730-01-223-0532 (4730012230532) | 4710-00-276-3984 (4710002763984) | |
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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