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LL4K10 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

LL4K10: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL AND STEEL CORROSION RESISTING BODY, leg_length: 0.656 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN, thread_class: 2B ALL ENDS, overall_length: 2.095 INCHES MINIMUM AND 2.170 INCHES MAXIMUM IN, connection_type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION, connection_style: BOSS GASKET SEAL ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-184-9295, 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
LL4K10
NSN: 4730-00-184-9295
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73992 — TUTHILL CORP HANSEN COUPLING DIV (USA)
SPECIFICATIONS
materialSTEEL AND STEEL CORROSION RESISTING BODY
leg_length0.656 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
thread_class2B ALL ENDS
overall_length2.095 INCHES MINIMUM AND 2.170 INCHES MAXIMUM IN
connection_typeTHREADED INTERNAL BOSS FIRST FLUID END CONNECTION
connection_styleBOSS GASKET SEAL ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentPASSIVATE BODY
nominal_thread_size0.875 INCHES ALL ENDS IN
end_item_identificationCOMMUNICATIONS SATELLITE TERMINAL MODEL AN/TSC-54
quick_disconnect_methodSPRING PUSH-PULL ALL ENDS
NSN4730-00-184-9295
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: LL4K10 · 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: BOSS GASKET SEAL ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66,AISI 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE BODY
•
QUICK DISCONNECT NOMINAL SIZE: 1.016 INCHES ALL ENDS IN
•
LEG LENGTH: 0.656 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEBOSS GASKET SEAL ALL ENDS
CONNECTION TYPETHREADED INTERNAL BOSS FIRST FLUID END CONNECTION
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
MATERIAL DOCUMENT AND CLASSIFICATION66,AISI 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE BODY
OVERALL LENGTH2.095 INCHES MINIMUM AND 2.170 INCHES MAXIMUM IN
QUICK DISCONNECT NOMINAL SIZE1.016 INCHES ALL ENDS IN
LEG LENGTH0.656 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
FEATURES PROVIDEDSELF-SEALING
NOMINAL THREAD SIZE0.875 INCHES ALL ENDS IN
SUBSTITUTES & CROSS-REFERENCES 2
4K10Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SM-A-569550-14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 LL4K10?
LL4K10 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace LL4K10?
There are 2 known substitutes for LL4K10: 4K10, SM-A-569550-14. Substitute compatibility should be verified for your specific system.
What is the NSN for LL4K10?
LL4K10 is cataloged in the U.S. Government catalog under NSN 4730-00-184-9295. 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.