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HF300-.3125 — VENT AND COVER ASSEMBLY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

HF300-.3125: VENT AND COVER ASSEMBLY.

The VENT AND COVER ASSEMBLY is a the manufacturer industrial component. Key specifications include shank_type: THREADED, design_type: SINGLE FOOT, holding_clip: NOT INCLUDED, thread_location: EXTERNAL, special_deflator: NOT INCLUDED, special_features: 70 DEGREE ANGLE AND 0.3125 IN. DIA INTERNAL THREAD IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-175-7117, 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
HF300-.3125
NSN: 4730-01-175-7117
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 13899 — HYDRO-FITTING MANUFACTURING CORPORATION (USA)
SPECIFICATIONS
shank_typeTHREADED
design_typeSINGLE FOOT
holding_clipNOT INCLUDED
thread_locationEXTERNAL
special_deflatorNOT INCLUDED
special_features70 DEGREE ANGLE AND 0.3125 IN. DIA INTERNAL THREAD IN
screw_thread_diameter0.438 INCHES NOMINAL IN
screw_thread_series_designatorUNF
NSN4730-01-175-7117
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: HF300-.3125 · 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
•
DESIGN TYPE: SINGLE FOOT
•
SHANK TYPE: THREADED
•
HOLDING CLIP: NOT INCLUDED
•
THREAD LOCATION: EXTERNAL
•
SCREW THREAD DIAMETER: 0.438 INCHES NOMINAL IN
•
SCREW THREAD SERIES DESIGNATOR: UNF
•
SPECIAL DEFLATOR: NOT INCLUDED
TECHNICAL CHARACTERISTICS
DESIGN TYPESINGLE FOOT
SHANK TYPETHREADED
HOLDING CLIPNOT INCLUDED
THREAD LOCATIONEXTERNAL
SCREW THREAD DIAMETER0.438 INCHES NOMINAL IN
SPECIAL FEATURES70 DEGREE ANGLE AND 0.3125 IN. DIA INTERNAL THREAD IN
SCREW THREAD SERIES DESIGNATORUNF
SPECIAL DEFLATORNOT INCLUDED
SUBSTITUTES & CROSS-REFERENCES 3
C10068Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
C10068-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HF300-.3125CReference 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 HF300-.3125?
HF300-.3125 is a VENT AND COVER ASSEMBLY.
What parts can replace HF300-.3125?
There are 3 known substitutes for HF300-.3125: C10068, C10068-3, HF300-.3125C. Substitute compatibility should be verified for your specific system.
What is the NSN for HF300-.3125?
HF300-.3125 is cataloged in the U.S. Government catalog under NSN 4730-01-175-7117. This indicates validated use in U.S. government and defense supply chains.
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