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Technical Data Sheet
PartsTable / COMPONENT / 277-00091-000
277-00091-000 ✓ 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 RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-195-7593, 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
277-00091-000
NSN: 4730-01-195-7593
FSC: 4730
CAGE: 0EXU3 — AQUA-CHEM, INC. DBA AQUA-CHEM INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
NSN4730-01-195-7593
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 277-00091-000 · 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
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
B-5943Interchangeable
interchangeable cross-reference
interchangeable
27791Interchangeable
interchangeable cross-reference
interchangeable
633-7506D PIECE 52Interchangeable
interchangeable cross-reference
interchangeable
633-7506D-000 PIECE 52Interchangeable
interchangeable cross-reference
interchangeable
633-7506DInterchangeable
interchangeable cross-reference
interchangeable
633-7506D-000 PIECE 51Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 277-00091-000?
277-00091-000 is a RESTRICTOR,FLUID FLOW.
What parts can replace 277-00091-000?
There are 17 known substitutes for 277-00091-000: B-5943, 27791, 633-7506D PIECE 52 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 277-00091-000?
277-00091-000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-195-7593. 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