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405-00943 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

405-00943: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, nominal_width: 2.500 INCHES IN, nominal_length: 2.500 INCHES IN, overall_length: 2.924 INCHES NOMINAL IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-397-3112, 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
405-00943
NSN: 4730-00-397-3112
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81833 — AEROCONTROLEX GROUP, INC. (USA)
SPECIFICATIONS
materialSTEEL BODY
nominal_width2.500 INCHES IN
nominal_length2.500 INCHES IN
overall_length2.924 INCHES NOMINAL IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
special_featuresFLANGE HOLES ARE THREADED 0.250-28-3B
style_designatorMALE COUPLING HALF
basic_shape_styleRECTANGULAR (INCLUDES SQUARE) FIRST FLUID END CONNECTION
features_providedSAFETY LOCKING FEATURE
bolt_hole_quantity4
quick_disconnect_methodTWIST-LOCK ALL ENDS
NSN4730-00-397-3112
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 405-00943 · 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
•
CONNECTION STYLE: PLAIN ALL ENDS
•
NOMINAL LENGTH: 2.500 INCHES IN
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
BOLT HOLE NOMINAL DIAMETER: 0.125 INCHES IN
•
FEATURES PROVIDED: SAFETY LOCKING FEATURE
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN ALL ENDS
NOMINAL LENGTH2.500 INCHES IN
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
CONNECTION TYPEFLANGE FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.924 INCHES NOMINAL IN
BOLT HOLE NOMINAL DIAMETER0.125 INCHES IN
FEATURES PROVIDEDSAFETY LOCKING FEATURE
BASIC SHAPE STYLERECTANGULAR (INCLUDES SQUARE) FIRST FLUID END CONNECTION
CENTER TO CENTER NOMINAL DISTANCE BETWEEN BOLT HOLES ALONG WIDTH1.812 INCHES IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
GC550FP1-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 405-00943?
405-00943 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 405-00943?
There is 1 known substitute for 405-00943: GC550FP1-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 405-00943?
405-00943 is cataloged in the U.S. Government catalog under NSN 4730-00-397-3112. 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.