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10556075 ✓ 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 FITTING,RELIEF VALV is a the manufacturer industrial component. Key specifications include phase: SINGLE INPUT, material: STEEL, duty_cycle: CONTINUOUS, flat_depth: 0.0620 INCHES NOMINAL SINGLE END IN, shaft_type: ROUND SINGLE ACTUATOR, body_length: 0.562 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-446-3738, 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
10556075
NSN: 4730-01-446-3738
FSC: 4730
CAGE: 56161 — GENERAL DYNAMICS LAND SYSTEMS CANADACORP (CAN)
SPECIFICATIONS
phaseSINGLE INPUT
materialSTEEL
duty_cycleCONTINUOUS
flat_depth0.0620 INCHES NOMINAL SINGLE END IN
shaft_typeROUND SINGLE ACTUATOR
body_length0.562 INCHES NOMINAL IN
design_typeREUSABLEREUSABLE
head_height0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
barrel_styleTAPERED ROUND TYPE
current_typeAC INPUT
flange_styleFLANGE
shaft_length0.500 INCHES NOMINAL SINGLE ACTUATOR IN
NSN4730-01-446-3738
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10556075 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2121-1Interchangeable
interchangeable cross-reference
interchangeable
305A113Interchangeable
interchangeable cross-reference
interchangeable
A40420Interchangeable
interchangeable cross-reference
interchangeable
SCD21058-7Interchangeable
interchangeable cross-reference
interchangeable
351915A1SInterchangeable
interchangeable cross-reference
interchangeable
129S6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10556075?
10556075 is a FITTING,RELIEF VALV.
What parts can replace 10556075?
There are 12 known substitutes for 10556075: 2121-1, 305A113, A40420 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10556075?
10556075 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-446-3738. 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