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10177036 ✓ 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 LOCKNUT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: PIPE LOCKNUT, nut_height: 0.130 INCHES NOMINAL IN, thread_series: NPSI, furnished_items: PREFORMED PACKING, special_features: W/POLYTETRAFLUOROETHYLENE SEAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-531-5499, 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
10177036
NSN: 4730-00-531-5499
FSC: 4730
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL OVERALL
nut_stylePIPE LOCKNUT
nut_height0.130 INCHES NOMINAL IN
thread_seriesNPSI
furnished_itemsPREFORMED PACKING
special_featuresW/POLYTETRAFLUOROETHYLENE SEAL
thread_directionRIGHT-HAND
surface_treatmentDICHROMATE OR CADMIUM OVERALL
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
packing_recess_depth0.060 INCHES NOMINAL IN
end_item_identificationFBN SPRUANCE CLASS DD (963)
NSN4730-00-531-5499
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10177036 · 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: STEEL OVERALL
•
NUT STYLE: PIPE LOCKNUT
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
•
THREAD SERIES: NPSI
•
THREAD QUANTITY PER INCH: 27
•
PACKING RECESS DEPTH: 0.060 INCHES NOMINAL IN
•
FURNISHED ITEMS: PREFORMED PACKING
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
NUT STYLEPIPE LOCKNUT
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
THREAD SERIESNPSI
THREAD QUANTITY PER INCH27
END ITEM IDENTIFICATIONFBN SPRUANCE CLASS DD (963)
PACKING RECESS DEPTH0.060 INCHES NOMINAL IN
FURNISHED ITEMSPREFORMED PACKING
NUT HEIGHT0.130 INCHES NOMINAL IN
SURFACE TREATMENTDICHROMATE OR CADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1787777-2Interchangeable
interchangeable cross-reference
interchangeable
4730006706031Interchangeable
interchangeable cross-reference
interchangeable
283569R1Interchangeable
interchangeable cross-reference
interchangeable
350-TSE01-75Interchangeable
interchangeable cross-reference
interchangeable
B122-12P2Interchangeable
interchangeable cross-reference
interchangeable
1787777-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10177036?
10177036 is a LOCKNUT,PIPE.
What parts can replace 10177036?
There are 20 known substitutes for 10177036: 1787777-2, 4730006706031, 283569R1 and 17 more. Substitute compatibility should be verified for your specific system.
Is 10177036 still available?
10177036 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026