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Technical Data Sheet
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4253977 ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1065 OR STEEL COMP 1080 OVERALL, overall_width: 0.320 INCHES NOMINAL IN, inside_diameter: 1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN, style_designator: WIRE, surface_treatment: CADMIUM OR ZINC OVERALL, fastening_device_type: SPRING TENSION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-585-8582, 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
4253977
NSN: 4730-00-585-8582
FSC: 4730
CAGE: 6N299 — AGCO CORP PARTS OPN (USA)
SPECIFICATIONS
materialSTEEL COMP 1065 OR STEEL COMP 1080 OVERALL
overall_width0.320 INCHES NOMINAL IN
inside_diameter1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
style_designatorWIRE
surface_treatmentCADMIUM OR ZINC OVERALL
fastening_device_typeSPRING TENSION
end_item_identificationUSED ON ALLIS-CHALMERS MODEL 645M SCOOP LOADER W/2 1/2 CUBIC YARD MULTI-PURPOSE BUCKET
NSN4730-00-585-8582
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4253977 · 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: STEEL COMP 1065 OR STEEL COMP 1080 OVERALL
•
STYLE DESIGNATOR: WIRE
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
FASTENING DEVICE TYPE: SPRING TENSION
•
INSIDE DIAMETER: 1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1065 OR STEEL COMP 1080 OVERALL
STYLE DESIGNATORWIRE
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
OVERALL WIDTH0.320 INCHES NOMINAL IN
FASTENING DEVICE TYPESPRING TENSION
END ITEM IDENTIFICATIONUSED ON ALLIS-CHALMERS MODEL 645M SCOOP LOADER W/2 1/2 CUBIC YARD MULTI-PURPOSE BUCKET
INSIDE DIAMETER1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
A22Interchangeable
interchangeable cross-reference
interchangeable
214-2203Interchangeable
interchangeable cross-reference
interchangeable
E-16Interchangeable
interchangeable cross-reference
interchangeable
MCL-133Interchangeable
interchangeable cross-reference
interchangeable
GPW11055Interchangeable
interchangeable cross-reference
interchangeable
R22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4253977?
4253977 is a CLAMP,HOSE.
What parts can replace 4253977?
There are 23 known substitutes for 4253977: A22, 214-2203, E-16 and 20 more. Substitute compatibility should be verified for your specific system.
Is 4253977 still available?
4253977 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