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0421C90-1100 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

0421C90-1100: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include overall_length: 8.900 INCHES NOMINAL IN, style_designator: FEMALE COUPLING HALF, end_item_identification: R21FMSPA-FS00, nominal_outside_diameter: 10.160 INCHES IN, part_name_assigned_by_controlling_agency: CAMLOCK COUPLING, DOUBLE GROOVE-TO-FEMALE, 6". This part is cataloged in the U.S.

Government catalog under NSN 4730-01-652-9715, 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
0421C90-1100
NSN: 4730-01-652-9715
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 20722 — THE ENTWISTLE COMPANY LLC (USA)
SPECIFICATIONS
overall_length8.900 INCHES NOMINAL IN
style_designatorFEMALE COUPLING HALF
end_item_identificationR21FMSPA-FS00
nominal_outside_diameter10.160 INCHES IN
part_name_assigned_by_controlling_agencyCAMLOCK COUPLING, DOUBLE GROOVE-TO-FEMALE, 6"
NSN4730-01-652-9715
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 0421C90-1100 · 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
•
STYLE DESIGNATOR: FEMALE COUPLING HALF
•
NOMINAL OUTSIDE DIAMETER: 10.160 INCHES IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFEMALE COUPLING HALF
OVERALL LENGTH8.900 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER10.160 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCAMLOCK COUPLING, DOUBLE GROOVE-TO-FEMALE, 6"
END ITEM IDENTIFICATIONR21FMSPA-FS00
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
60226005SG-33446Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0421C90-1100?
0421C90-1100 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 0421C90-1100?
There is 1 known substitute for 0421C90-1100: 60226005SG-33446. Substitute compatibility should be verified for your specific system.
What is the NSN for 0421C90-1100?
0421C90-1100 is cataloged in the U.S. Government catalog under NSN 4730-01-652-9715. 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.