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GC501L812 ✓ 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 301 OVERALL, overall_width: 0.562 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN, inside_diameter: 0.688 INCHES MINIMUM AND 8.125 INCHES MAXIMUM IN, special_features: THUMBGRIP DRILLED 0.070 IN. HOLE 0.250 IN.

FROM CENTER FOR A LOCKWIRE IN, style_designator: BAND, surface_treatment: ZINC THUMBSCREW. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-288-5803, 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
GC501L812
NSN: 4730-01-288-5803
FSC: 4730
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
overall_width0.562 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
inside_diameter0.688 INCHES MINIMUM AND 8.125 INCHES MAXIMUM IN
special_featuresTHUMBGRIP DRILLED 0.070 IN. HOLE 0.250 IN. FROM CENTER FOR A LOCKWIRE IN
style_designatorBAND
surface_treatmentZINC THUMBSCREW
fastening_device_typeTHUMB HEAD SCREW
material_document_and_classificationMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-288-5803
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GC501L812 · 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
•
STYLE DESIGNATOR: BAND
•
SURFACE TREATMENT: ZINC THUMBSCREW
•
MATERIAL: STEEL COMP 301 OVERALL
•
INSIDE DIAMETER: 0.688 INCHES MINIMUM AND 8.125 INCHES MAXIMUM IN
•
FASTENING DEVICE TYPE: THUMB HEAD SCREW
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORBAND
SURFACE TREATMENTZINC THUMBSCREW
MATERIALSTEEL COMP 301 OVERALL
INSIDE DIAMETER0.688 INCHES MINIMUM AND 8.125 INCHES MAXIMUM IN
SPECIAL FEATURESTHUMBGRIP DRILLED 0.070 IN. HOLE 0.250 IN. FROM CENTER FOR A LOCKWIRE IN
FASTENING DEVICE TYPETHUMB HEAD SCREW
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL WIDTH0.562 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
GC501L362Interchangeable
interchangeable cross-reference
interchangeable
UBX-XInterchangeable
interchangeable cross-reference
interchangeable
GC501LInterchangeable
interchangeable cross-reference
interchangeable
GC501L1012Interchangeable
interchangeable cross-reference
interchangeable
UBX-1012Interchangeable
interchangeable cross-reference
interchangeable
NE100802-1012Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GC501L812?
GC501L812 is a CLAMP,HOSE.
What parts can replace GC501L812?
There are 14 known substitutes for GC501L812: GC501L362, UBX-X, GC501L and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GC501L812?
GC501L812 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-288-5803. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026