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300729 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

300729: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OR COPPER ALLOY, case_style: SQUARE, leg_length: 1.053 INCHES MINIMUM AND 1.080 INCHES MAXIMUM IN, seal_width: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN, temp_rating: -40.0 FAHRENHEIT DEGF, overall_length: 3.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-758-7210, 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
300729
NSN: 5330-00-758-7210
NIINs: 007587210, 010960582, 011942161, 014106925
FSC: 5330 — Packing and Gasket Materials
CAGE: H0G87 — WIBA ZEVENAAR B.V. (NLD)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OR COPPER ALLOY
case_styleSQUARE
leg_length1.053 INCHES MINIMUM AND 1.080 INCHES MAXIMUM IN
seal_width0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
temp_rating-40.0 FAHRENHEIT DEGF
overall_length3.188 INCHES NOMINAL IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorPARALLEL
surface_treatmentANODIZE BODY
nominal_thread_size1.500 INCHES ALL ENDS IN
housing_bore_diameter2.440 INCHES MINIMUM AND 2.442 INCHES MAXIMUM IN
NSN5330-00-758-7210
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 300729 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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TEMP RATING: -40.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 2.440 INCHES MINIMUM AND 2.442 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-698 FED SPEC ALL MATERIAL RESPONSES CASE
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CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM CASE
TECHNICAL CHARACTERISTICS
TEMP RATING-40.0 FAHRENHEIT DEGF
SEAL WIDTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER2.440 INCHES MINIMUM AND 2.442 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698 FED SPEC ALL MATERIAL RESPONSES CASE
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.750 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
SUBSTITUTES & CROSS-REFERENCES 1
471831NReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 300729?
300729 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 300729?
There is 1 known substitute for 300729: 471831N. Substitute compatibility should be verified for your specific system.
What is the NSN for 300729?
300729 is cataloged in the U.S. Government catalog under NSN 5330-00-758-7210. 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.