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40946 — HOUSING,AIR BRAKE CHAMBER

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

40946: HOUSING,AIR BRAKE CHAMBER.

The HOUSING,AIR BRAKE CHAMBER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_width: 3.110 INCHES NOMINAL IN, overall_height: 4.240 INCHES NOMINAL IN, overall_length: 14.500 INCHES NOMINAL IN, special_features: MATERIAL ALLOY 632; NEXT HIGHER ASSEMBLY ESM DOOR ASSEMBLY, end_item_identification: SEAWOLF CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-150-7574, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
40946
NSN: 4730-01-150-7574
NIINs: 011507574, 014752972
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_width3.110 INCHES NOMINAL IN
overall_height4.240 INCHES NOMINAL IN
overall_length14.500 INCHES NOMINAL IN
special_featuresMATERIAL ALLOY 632; NEXT HIGHER ASSEMBLY ESM DOOR ASSEMBLY
end_item_identificationSEAWOLF CLASS SSN
thread_size_and_series/type_designator0.437-20-3B UNF
part_name_assigned_by_controlling_agencyHOUSING
NSN4730-01-150-7574
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 40946 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: PLAIN (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 1.188 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CL 416 CD A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) SECOND END
CONNECTION STYLEPLAIN (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.188 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CL 416 CD A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.385 INCHES SECOND END IN
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE1.062 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 3
19870NReference document
Same NSN cross-reference
Reference document — Drawing number reference only
13426N PIECE 57Reference document
Same NSN cross-reference
Reference document — Secondary reference
19870N PIECE 59Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40946?
40946 is a HOUSING,AIR BRAKE CHAMBER.
What parts can replace 40946?
There are 3 known substitutes for 40946: 19870N, 13426N PIECE 57, 19870N PIECE 59. Substitute compatibility should be verified for your specific system.
What is the NSN for 40946?
40946 is cataloged in the U.S. Government catalog under NSN 4730-01-150-7574. This indicates validated use in U.S. government and defense supply chains.
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