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Technical Data Sheet
PartsTable / COMPONENT / 300 112 HB
300 112 HB ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, special_features: NON-MAGNETIC,HEXDRIVE WITH SLOT IN HEAD, style_designator: WIRE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-838-9889, 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
300 112 HB
NSN: 4730-00-838-9889
FSC: 4730
CAGE: 7X588 — O HAIR P E AND CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
special_featuresNON-MAGNETIC,HEXDRIVE WITH SLOT IN HEAD
style_designatorWIRE
NSN4730-00-838-9889
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 300 112 HB · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 410 SCREW
•
STYLE DESIGNATOR: WIRE
•
SURFACE TREATMENT: PASSIVATE BAND
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
INSIDE DIAMETER: 6.625 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 410 SCREW
STYLE DESIGNATORWIRE
SURFACE TREATMENTPASSIVATE BAND
MATERIALSTEEL COMP 302 BAND
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
INSIDE DIAMETER6.625 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
OVERALL WIDTH0.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
6-3-116Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
629900-2Interchangeable
interchangeable cross-reference
interchangeable
6505-052Interchangeable
interchangeable cross-reference
interchangeable
300 112 H BInterchangeable
interchangeable cross-reference
interchangeable
300-112HInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 300 112 HB?
300 112 HB is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 300 112 HB?
There are 14 known substitutes for 300 112 HB: 6-3-116, MIL-F-2692, 629900-2 and 11 more. Substitute compatibility should be verified for your specific system.
Is 300 112 HB still available?
300 112 HB is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026