| Item Name | Coupling Boss |
| 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) | 00-345-8703 (003458703) |
| NCB Code | USA (00) |
| Manufacturer | Boeing Company The, Br Machine Parts Inc, Kmi Inc, Pioneer Machine Products Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B ALL ENDS |
| AHNC | CONNECTION STYLE | GASKET SEAL (BOSS) ALL ENDS |
| AWLS | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS |
| CQJX | NOMINAL THREAD SIZE | 0.375 INCHES ALL ENDS |
| CRDL | UNION JOINT LOCATION | SECOND END |
| CWFR | NOMINAL OVERALL LENGTH | 1.531 INCHES |
| FEAT | SPECIAL FEATURES | DRILL 0.070 IN. HOLE FOR LOCKWIRE,BULKHEAD,UNF THD SERIES,0.625 IN. THD SIZE SECOND END |
| MATT | MATERIAL | STEEL COMP 303SE OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303SE FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PRIMER OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RIGID,SHORT CENTER WRENCHING FACILITY |
| THSD | THREAD SERIES DESIGNATOR | UNF ALL ENDS |
| Relevant Components for NSN - 4730-00-345-8703, 4730003458703 | ||||
| 4730-01-469-3594 (4730014693594) | 4720-00-236-0082 (4720002360082) | 4730-01-594-7646 (4730015947646) | 4730-01-658-6133 (4730016586133) | |
| 4710-01-489-1638 (4710014891638) | 4720-01-348-4338 (4720013484338) | 4730-01-329-2969 (4730013292969) | 4720-01-657-3820 (4720016573820) | |
| 4720-00-631-3173 (4720006313173) | 4730-01-496-8185 (4730014968185) | 4720-00-012-3581 (4720000123581) | 4730-01-242-7736 (4730012427736) | |
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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