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1920C — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1920C: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include height: 1.125 INCHES MAXIMUM IN, material: NICKEL ALLOY OVERALL, shank_length: 0.312 INCHES NOMINAL IN, special_features: SURFACE OR THROAT LOCATED BALL CHECK VALVE, style_designator: STRAIGHT, width_across_flats: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-172-0044, 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
1920C
NSN: 4730-00-172-0044
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)
SPECIFICATIONS
height1.125 INCHES MAXIMUM IN
materialNICKEL ALLOY OVERALL
shank_length0.312 INCHES NOMINAL IN
special_featuresSURFACE OR THROAT LOCATED BALL CHECK VALVE
style_designatorSTRAIGHT
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
thread_quantity_per_inch27
screw_thread_series_designatorPTF-SPL SHORT
material_document_and_classificationQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-172-0044
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1920C · 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
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
SHANK LENGTH: 0.312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
HEIGHT: 1.125 INCHES MAXIMUM IN
•
SCREW THREAD SERIES DESIGNATOR: PTF-SPL SHORT
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
SHANK LENGTH0.312 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.125 INCHES IN
HEIGHT1.125 INCHES MAXIMUM IN
SPECIAL FEATURESSURFACE OR THROAT LOCATED BALL CHECK VALVE
SCREW THREAD SERIES DESIGNATORPTF-SPL SHORT
THREAD QUANTITY PER INCH27
MATERIALNICKEL ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 6
MS15005-2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
751-6402201 FIND 71Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-F-3541BReference document
Same NSN cross-reference
Reference document — Secondary reference
751-6402201-71Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SAE-AS35411Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2642-343-10 ITEM 14Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1920C?
1920C is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 1920C?
There are 6 known substitutes for 1920C: MS15005-2, 751-6402201 FIND 71, MIL-F-3541B and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1920C?
1920C is cataloged in the U.S. Government catalog under NSN 4730-00-172-0044. 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.