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03040-203 — DIAPHRAGM,ACTUATOR VALVE,SPECIAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

03040-203: DIAPHRAGM,ACTUATOR VALVE,SPECIAL.

DIAPHRAGM,ACTUATOR VALVE,SPECIAL. Key specifications include height: 1.062 INCHES NOMINAL IN, material: STEEL OR COPPER ALLOY OVERALL, shank_length: 0.500 INCHES NOMINAL IN, shank_diameter: 0.878 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN, style_designator: STRAIGHT, HINGED CAP, W/SHOULDER, surface_treatment: NICKEL OR CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-233-0757, 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
03040-203
NSN: 4730-00-233-0757
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 31361 — WOODWARD, INC. (USA)
SPECIFICATIONS
height1.062 INCHES NOMINAL IN
materialSTEEL OR COPPER ALLOY OVERALL
shank_length0.500 INCHES NOMINAL IN
shank_diameter0.878 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
style_designatorSTRAIGHT, HINGED CAP, W/SHOULDER
surface_treatmentNICKEL OR CADMIUM OVERALL
assembly_clearance_radius0.906 INCHES NOMINAL IN
NSN4730-00-233-0757
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 03040-203 · 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
•
SHANK DIAMETER: 0.878 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
•
ASSEMBLY CLEARANCE RADIUS: 0.906 INCHES NOMINAL IN
•
SHANK LENGTH: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT, HINGED CAP, W/SHOULDER
•
HEIGHT: 1.062 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL OR CADMIUM OVERALL
•
MATERIAL: STEEL OR COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.878 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
ASSEMBLY CLEARANCE RADIUS0.906 INCHES NOMINAL IN
SHANK LENGTH0.500 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT, HINGED CAP, W/SHOULDER
HEIGHT1.062 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL OR CADMIUM OVERALL
MATERIALSTEEL OR COPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
187012Reference document
Same NSN cross-reference
Reference document — Secondary reference
00308-0063-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
R308Reference document
Same NSN cross-reference
Reference document — Secondary reference
B2000-16-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 03040-203?
03040-203 is a DIAPHRAGM,ACTUATOR VALVE,SPECIAL.
What parts can replace 03040-203?
There are 4 known substitutes for 03040-203: 187012, 00308-0063-1, R308 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 03040-203?
03040-203 is cataloged in the U.S. Government catalog under NSN 4730-00-233-0757. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.