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4M-4SM — NIPPLE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4M-4SM: NIPPLE,PIPE.

The NIPPLE,PIPE is a the manufacturer industrial component. Key specifications include body_diameter: 2.860 INCHES NOMINAL IN, terminal_type: CONNECTOR, RECEPTACLE, overall_height: 2.500 INCHES NOMINAL IN, overall_length: 3.500 INCHES NOMINAL IN, mounting_method: BRACKET(S), features_provided: AUTOMATIC RESET. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-197-8138, 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
4M-4SM
NSN: 4730-01-197-8138
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73842 — GOODYEAR TIRE AND RUBBER CO THE (USA)
SPECIFICATIONS
body_diameter2.860 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE
overall_height2.500 INCHES NOMINAL IN
overall_length3.500 INCHES NOMINAL IN
mounting_methodBRACKET(S)
features_providedAUTOMATIC RESET
nominal_thread_size0.4375 INCHES SINGLE PRESSURE CONNECTION IN
pressure_switch_typeGAGE
contact_adjustabilityACTUATION POINT NOT ADJUSTABLE
cable_opening_quantity1
contact_action_stimulusINCREASE
contact_stimulus_rating18.00 ACTUATION POINT NOMINAL OUNCES PER SQUARE INCH AND 0.00 DEACTUATION POINT NOMINAL OUNCES PER SQUARE INCH
NSN4730-01-197-8138
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4M-4SM · 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
SUBSTITUTES & CROSS-REFERENCES 1
4M-4MSReference 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 4M-4SM?
4M-4SM is a NIPPLE,PIPE.
What parts can replace 4M-4SM?
There is 1 known substitute for 4M-4SM: 4M-4MS. Substitute compatibility should be verified for your specific system.
What is the NSN for 4M-4SM?
4M-4SM is cataloged in the U.S. Government catalog under NSN 4730-01-197-8138. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.