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7M156-4SS4 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7M156-4SS4: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2A SECOND END A, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) FIRST END, special_features: GRUMMAN AEROSPACE CORP A10 AIRCRAFT, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-580-8171, 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
7M156-4SS4
NSN: 4730-00-580-8171
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2A SECOND END A
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) FIRST END
special_featuresGRUMMAN AEROSPACE CORP A10 AIRCRAFT
surface_treatmentPASSIVATE OVERALL
operating_pressure107.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES FIRST END IN
nominal_overall_length1.391 INCHES IN
end_item_identificationGENERAL HYDRAULIC APPLICATION; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorUNF SECOND END
NSN4730-00-580-8171
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M156-4SS4 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
•
CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.391 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
OPERATING PRESSURE: 107.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 0.438 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL OVERALL LENGTH1.391 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
OPERATING PRESSURE107.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA96906-MS51503 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUBSTITUTES & CROSS-REFERENCES 6
877077-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS51503A4-4SReference document
Same NSN cross-reference
Reference document — Secondary reference
4-4 070103SAReference document
Same NSN cross-reference
Reference document — Secondary reference
4-4GBTX-SSReference document
Same NSN cross-reference
Reference document — Secondary reference
35294487Reference document
Same NSN cross-reference
Reference document — Secondary reference
4730PL0962261Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7M156-4SS4?
7M156-4SS4 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 7M156-4SS4?
There are 6 known substitutes for 7M156-4SS4: 877077-00, MS51503A4-4S, 4-4 070103SA and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M156-4SS4?
7M156-4SS4 is cataloged in the U.S. Government catalog under NSN 4730-00-580-8171. This indicates validated use in U.S. government and defense supply chains.
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