PartsTable
Technical Data Sheet
6511187 ✓ 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, overall_length: 2.940 INCHES NOMINAL IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, features_provided: SELF-SEALING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-781-9629, 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
6511187
NSN: 4730-00-781-9629
FSC: 4730
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_length2.940 INCHES NOMINAL IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentPASSIVATE BODY
nominal_thread_size0.500 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size0.922 INCHES ALL ENDS IN
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE BODY
NSN4730-00-781-9629
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6511187 · 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
FEATURES PROVIDED: SELF-SEALING
QUICK DISCONNECT NOMINAL SIZE: 0.922 INCHES ALL ENDS IN
THREAD SERIES DESIGNATOR: NPT ALL ENDS
STYLE DESIGNATOR: MALE COUPLING HALF
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
CONNECTION STYLE: PLAIN ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE BODY
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDSELF-SEALING
QUICK DISCONNECT NOMINAL SIZE0.922 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE BODY
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
12BInterchangeable
interchangeable cross-reference
interchangeable
829790Interchangeable
interchangeable cross-reference
interchangeable
4315Interchangeable
interchangeable cross-reference
interchangeable
MS17161-62Interchangeable
interchangeable cross-reference
interchangeable
8B10V30V90VInterchangeable
interchangeable cross-reference
interchangeable
8BTHERMIST0RInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6511187?
6511187 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 6511187?
There are 20 known substitutes for 6511187: 12B, 829790, 4315 and 17 more. Substitute compatibility should be verified for your specific system.
Is 6511187 still available?
6511187 is currently cancelled.
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