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F-900 ✓ 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

RELAY-SOLENOID,ENGINE STARTER,EL. Key specifications include color: ORANGE, height: 0.125 INCHES NOMINAL IN, diameter: 0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN, material: STEEL OVERALL, thickness: 0.438 INCHES NOMINAL IN, head_style: FLAT CHAMFER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-184-7376, 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
F-900
NSN: 4730-00-184-7376
FSC: 4730
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
colorORANGE
height0.125 INCHES NOMINAL IN
diameter0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
materialSTEEL OVERALL
thickness0.438 INCHES NOMINAL IN
head_styleFLAT CHAMFER
neck_height0.906 INCHES NOMINAL IN
socket_depth1.094 INCHES NOMINAL IN
curing_methodAIR DRIED
chamfer_length0.078 INCHES NOMINAL IN
container_typeTUBE
flange_diameter4.960 INCHES NOMINAL IN
NSN4730-00-184-7376
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: F-900 · 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
•
FLANGE SECTION STYLE: PLAIN FACE, SOCKET NECK
•
MATERIAL: COPPER ALLOY
•
OPERATING PRESSURE AND TYPE: 150.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE QUANTITY: 4
•
SOCKET DEPTH: 1.094 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.625 INCHES NOMINAL IN
•
THICKNESS: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE SECTION STYLEPLAIN FACE, SOCKET NECK
MATERIALCOPPER ALLOY
OPERATING PRESSURE AND TYPE150.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE QUANTITY4
SOCKET DEPTH1.094 INCHES NOMINAL IN
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
THICKNESS0.438 INCHES NOMINAL IN
SOCKET DIAMETER1.628 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN
FLANGE DIAMETER4.960 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
1A25AInterchangeable
interchangeable cross-reference
interchangeable
235B39-47Interchangeable
interchangeable cross-reference
interchangeable
F900Interchangeable
interchangeable cross-reference
interchangeable
10391984Interchangeable
interchangeable cross-reference
interchangeable
5315004231821Interchangeable
interchangeable cross-reference
interchangeable
D8DZ-11450-BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F-900?
F-900 is a RELAY-SOLENOID,ENGINE STARTER,EL.
What parts can replace F-900?
There are 10 known substitutes for F-900: 1A25A, 235B39-47, F900 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F-900?
F-900 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-184-7376. 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