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6401267 — HINGE BLOCK,BREECHBLOCK

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6401267: HINGE BLOCK,BREECHBLOCK.

The HINGE BLOCK,BREECHBLOCK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, head_style: FLAT CHAMFER, head_height: 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, overall_width: 0.344 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-399-0975, 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
6401267
NSN: 4730-01-399-0975
NIINs: 013990975, 013990978, 014119510, 014120677, 014120683, 014124613, 014132518, 014132522, 014283196, 014305298, 014453344
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
head_styleFLAT CHAMFER
head_height0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
overall_width0.344 INCHES NOMINAL IN
step_quantity2
thread_length0.750 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
end_similarityNOT IDENTICAL
overall_length10.340 INCHES NOMINAL IN
fastener_length0.875 INCHES NOMINAL IN
first_end_styleHEXAGONAL
NSN4730-01-399-0975
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6401267 · 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: PLAIN (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.618 INCHES IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH2.618 INCHES IN
CONNECTION TYPEUNTHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORPLAIN
END ITEM IDENTIFICATIONBARRELL ASSEMBLY
SUBSTITUTES & CROSS-REFERENCES 3
211051899Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
595-6401267 ITEM 13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
211069200Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 6401267?
6401267 is a HINGE BLOCK,BREECHBLOCK.
What parts can replace 6401267?
There are 3 known substitutes for 6401267: 211051899, 595-6401267 ITEM 13, 211069200. Substitute compatibility should be verified for your specific system.
What is the NSN for 6401267?
6401267 is cataloged in the U.S. Government catalog under NSN 4730-01-399-0975. This indicates validated use in U.S. government and defense supply chains.
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