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11643231 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

11643231: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 5140 OVERALL, seat_angle: 45.0 DEGREES, head_height: 0.250 INCHES NOMINAL IN, thread_class: 3A EXTERNAL A, overall_length: 0.630 INCHES NOMINAL IN, connection_style: FLARED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-427-7565, 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
11643231
NSN: 4730-00-427-7565
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 5140 OVERALL
seat_angle45.0 DEGREES
head_height0.250 INCHES NOMINAL IN
thread_class3A EXTERNAL A
overall_length0.630 INCHES NOMINAL IN
connection_styleFLARED
style_designatorPLUG, TUBE FITTING FLARED W/BLEEDER HOLES (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND EXTERNAL
features_providedSAFETY WIRE HOLE
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.312 INCHES EXTERNAL IN
bleeder_hole_diameter0.063 INCHES NOMINAL IN
NSN4730-00-427-7565
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 11643231 · 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
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
BLEEDER HOLE DIAMETER: 0.063 INCHES NOMINAL IN
•
CONNECTION STYLE: FLARED
•
BLEEDER HOLE CENTER TO THREADED END DISTANCE: 0.255 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLUG, TUBE FITTING FLARED W/BLEEDER HOLES (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
BLEEDER HOLE DIAMETER0.063 INCHES NOMINAL IN
CONNECTION STYLEFLARED
BLEEDER HOLE CENTER TO THREADED END DISTANCE0.255 INCHES NOMINAL IN
STYLE DESIGNATORPLUG, TUBE FITTING FLARED W/BLEEDER HOLES (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.630 INCHES NOMINAL IN
FEATURES PROVIDEDSAFETY WIRE HOLE
THREAD DIRECTIONRIGHT-HAND EXTERNAL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
4730004277565Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11643231?
11643231 is a PLUG,TUBE FITTING,THREADED.
What parts can replace 11643231?
There is 1 known substitute for 11643231: 4730004277565. Substitute compatibility should be verified for your specific system.
What is the NSN for 11643231?
11643231 is cataloged in the U.S. Government catalog under NSN 4730-00-427-7565. 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.