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Technical Data Sheet
PartsTable / COMPONENT / C-26128
C-26128 ✓ 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 SPACER,FLEXIBLE,PIPELINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.562 INCHES NOMINAL IN, head_style: HEXAGON, body_length: 10.750 INCHES NOMINAL IN, temp_rating: 270.0 FAHRENHEIT SINGLE RESPONSE DEGF, flange_style: ROUND W / BOLT HOLES FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-192-8900, 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
C-26128
NSN: 4730-00-192-8900
FSC: 4730
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.562 INCHES NOMINAL IN
head_styleHEXAGON
body_length10.750 INCHES NOMINAL IN
temp_rating270.0 FAHRENHEIT SINGLE RESPONSE DEGF
flange_styleROUND W / BOLT HOLES FIRST END
flange_height1.812 INCHES NOMINAL IN
vacuum_in_torr12.7
connection_typePLAIN FACE FLANGE FIRST END
fastener_length110.0 MILLIMETERS NOMINAL MM
inside_diameter2.000 INCHES NOMINAL IN
connection_stylePLAIN FIRST END
NSN4730-00-192-8900
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C-26128 · 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
•
THICKNESS: 0.562 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND
•
FLANGE THICKNESS: 0.625 INCHES NOMINAL IN
•
MATERIAL: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR AND PLASTIC POLYESTER AND RUBBER NEOPRENE
•
FLANGE HEIGHT: 1.812 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 6.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.562 INCHES NOMINAL IN
INSIDE DIAMETER2.500 INCHES NOMINAL IN
STYLE DESIGNATORROUND
FLANGE THICKNESS0.625 INCHES NOMINAL IN
SPECIAL FEATURESFLANGE HAS 6 0.562 IN. DIA HOLES ON A 5.000 IN. BOLT CIRCLE DIA AND FURNISHED WITH 8 180 DEG SEGMENTED RETAINING RINGS IN
MATERIALRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR AND PLASTIC POLYESTER AND RUBBER NEOPRENE
FLANGE HEIGHT1.812 INCHES NOMINAL IN
OUTSIDE DIAMETER6.125 INCHES NOMINAL IN
INSIDE DIAMETER2.500 INCHES NOMINAL IN
BODY LENGTH10.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
3150NN05NInterchangeable
interchangeable cross-reference
interchangeable
3150-4418Interchangeable
interchangeable cross-reference
interchangeable
3150NN05X18NInterchangeable
interchangeable cross-reference
interchangeable
CS4730-0130Interchangeable
interchangeable cross-reference
interchangeable
LR-1636Interchangeable
interchangeable cross-reference
interchangeable
3250-4518Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C-26128?
C-26128 is a SPACER,FLEXIBLE,PIPELINE.
What parts can replace C-26128?
There are 21 known substitutes for C-26128: 3150NN05N, 3150-4418, 3150NN05X18N and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C-26128?
C-26128 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-192-8900. 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