PartsTable
Technical Data Sheet
C911-6 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include leg_length: 0.688 INCHES NOMINAL IN, thread_class: 3A ALL ENDS A, overall_length: 1.850 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END, connection_style: FLARED ALL ENDS, special_features: DOUBLE BOSS THREADS ON FLUID END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-167-9884, 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
C911-6
NSN: 4730-01-167-9884
FSC: 4730
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
leg_length0.688 INCHES NOMINAL IN
thread_class3A ALL ENDS A
overall_length1.850 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
connection_styleFLARED ALL ENDS
special_featuresDOUBLE BOSS THREADS ON FLUID END
style_designatorMALE COUPLING HALF
nominal_thread_size0.438 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.250 INCHES ALL ENDS IN
NSN4730-01-167-9884
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C911-6 · 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
THREAD CLASS: 3A ALL ENDS A
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
CONNECTION TYPE: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
LEG LENGTH: 0.688 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATOR: UNF ALL ENDS
CONNECTION STYLE: FLARED ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A ALL ENDS A
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
LEG LENGTH0.688 INCHES NOMINAL IN
OVERALL LENGTH1.850 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORUNF ALL ENDS
CONNECTION STYLEFLARED ALL ENDS
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
14A360Interchangeable
interchangeable cross-reference
interchangeable
C91-1Interchangeable
interchangeable cross-reference
interchangeable
2143836Interchangeable
interchangeable cross-reference
interchangeable
11844Interchangeable
interchangeable cross-reference
interchangeable
2995238Interchangeable
interchangeable cross-reference
interchangeable
403-2058Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C911-6?
C911-6 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace C911-6?
There are 11 known substitutes for C911-6: 14A360, C91-1, 2143836 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C911-6?
C911-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-167-9884. This indicates validated use in U.S. government and defense supply chains.
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