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National Stock Number:
4720-00-399-7957
Federal Supply Class:
4720
National Item Identification Number:
003997957
Description:
HOSE,AIR DUCT
Detail:
A flexible, tubular item of light wall construction. It must have single or multiple layers of nonmetallic material, but may contain metal wire reinforcement, foil type liner, and/or woven or braided cover. It is designed to convey under low pressure gaseous material, such as air and fumes, and light weight solid materials, such as dust, powders, and fibers. For items with couplings, see HOSE ASSEMBLY, AIR DUCT. For items of sleeve section design rated for high pressure use, see SLEEVE, SEAL, COUPLING. Excludes hose, nonmetallic.
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Manufacturer Information:
| SM-B-121779 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | SM-B-121779P1 | 03538 | LOCKHEED MARTIN CORPORATION | | SM-B-121779P1 | 76376 | MECHANICAL RUBBER PRODUCTS COMPANY, INC. | | SM-B-121779P1 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| MATERIAL | RUBBER CHLOROPRENE CLASS CR 1ST PLY | | STYLE DESIGNATOR | SLEEVE SECTION | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | INSIDE WIDTH | 1.000 INCHES NOMINAL FIRST END | | INSIDE LENGTH | 3.000 INCHES NOMINAL FIRST END | | WALL THICKNESS | 0.060 INCHES MINIMUM AND | | 0.100 INCHES MAXIMUM | | MEASURING METHOD AND LENGTH | 8.140 INCHES NOMINAL OVERALL | | CONNECTION TYPE | PREFORMED BOTH ENDS | | CONNECTION STYLE | RECTANGULAR BOTH ENDS | | END INSIDE WIDTH | 3.000 INCHES NOMINAL FIRST END | | 3.400 INCHES NOMINAL SECOND END | | END INSIDE LENGTH | 1.000 INCHES NOMINAL FIRST END | | 1.400 INCHES NOMINAL SECOND END | | END OVERALL LENGTH | 1.000 INCHES NOMINAL BOTH ENDS |
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