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871103 — COUPLING HALF,SELF-SEALING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

871103: COUPLING HALF,SELF-SEALING.

The COUPLING HALF,SELF-SEALING is a the manufacturer industrial component. Key specifications include width: 48.000 INCHES NOMINAL IN, length: 12.000 FEET NOMINAL FT, material: STEEL, basic_shape_style: SOLID, end_item_identification: USED TO UP-ARMOR THE M1114 HMMWV (HUM V), cross-sectional_thickness: 0.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-840-8820, 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
871103
NSN: 4730-00-840-8820
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 09786 — ORDNANCE SUPPLY OFFICE (USA)
SPECIFICATIONS
width48.000 INCHES NOMINAL IN
length12.000 FEET NOMINAL FT
materialSTEEL
basic_shape_styleSOLID
end_item_identificationUSED TO UP-ARMOR THE M1114 HMMWV (HUM V)
cross-sectional_thickness0.2500 INCHES NOMINAL IN
nondefinitive_spec/std_dataAR400 360 BRINELL RATING
material_document_and_classificationAR400 MFR REF SINGLE MATERIAL RESPONSE
NSN4730-00-840-8820
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 871103 · 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
AR400Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 871103?
871103 is a COUPLING HALF,SELF-SEALING.
What parts can replace 871103?
There is 1 known substitute for 871103: AR400. Substitute compatibility should be verified for your specific system.
What is the NSN for 871103?
871103 is cataloged in the U.S. Government catalog under NSN 4730-00-840-8820. 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.