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PartsTable / COMPONENT / 843953-1
843953-1 ✓ 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 material: STEEL BODY, leg_length: 0.391 INCHES NOMINAL IN, overall_length: 1.400 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-489-3907, 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
843953-1
NSN: 4730-00-489-3907
FSC: 4730
CAGE: U6682 — LEONARDO UK LTD (GBR)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.391 INCHES NOMINAL IN
overall_length1.400 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentZINC OR CADMIUM BODY
nominal_thread_size0.125 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size0.312 INCHES ALL ENDS IN
NSN4730-00-489-3907
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 843953-1 · 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
•
QUICK DISCONNECT NOMINAL SIZE: 0.312 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
SURFACE TREATMENT: ZINC OR CADMIUM BODY
•
MATERIAL: STEEL BODY
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.400 INCHES NOMINAL IN
QUICK DISCONNECT NOMINAL SIZE0.312 INCHES ALL ENDS IN
STYLE DESIGNATORMALE COUPLING HALF
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
SURFACE TREATMENTZINC OR CADMIUM BODY
MATERIALSTEEL BODY
CONNECTION STYLEPLAIN ALL ENDS
LEG LENGTH0.391 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2607Interchangeable
interchangeable cross-reference
interchangeable
A2607Interchangeable
interchangeable cross-reference
interchangeable
151-0268-00Interchangeable
interchangeable cross-reference
interchangeable
SCA14951Interchangeable
interchangeable cross-reference
interchangeable
C4-1005Interchangeable
interchangeable cross-reference
interchangeable
1585384Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 843953-1?
843953-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 843953-1?
There are 20 known substitutes for 843953-1: 2607, A2607, 151-0268-00 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 843953-1?
843953-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-489-3907. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026