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PartsTable / COMPONENT / S11813-001
S11813-001 ✓ 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 NUT,UNION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: ROUND, nut_height: 0.640 INCHES NOMINAL IN, nut_diameter: 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNEF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-457-2686, 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
S11813-001
NSN: 4730-00-457-2686
FSC: 4730
CAGE: 72166 — B.W. ELLIOTT MANUFACTURING CO., LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleROUND
nut_height0.640 INCHES NOMINAL IN
nut_diameter1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNEF
shoulder_width0.125 INCHES NOMINAL IN
special_featuresKNURLED
thread_directionRIGHT-HAND
nominal_thread_size0.750 INCHES IN
shoulder_step_width0.040 INCHES NOMINAL IN
drilled_hole_diameter0.068 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN4730-00-457-2686
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: S11813-001 · 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
•
NUT DIAMETER: 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN
•
DRILLED HOLE DIAMETER: 0.068 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
THREAD SERIES: UNEF
•
SMALLEST INSIDE DIAMETER: 0.594 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 20
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
SHOULDER SEAT DIAMETER: 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT DIAMETER1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN
DRILLED HOLE DIAMETER0.068 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
SPECIAL FEATURESKNURLED
THREAD SERIESUNEF
SMALLEST INSIDE DIAMETER0.594 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
NOMINAL THREAD SIZE0.750 INCHES IN
SHOULDER SEAT DIAMETER0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
SHOULDER STEP WIDTH0.040 INCHES NOMINAL IN
HOLE CONFIGURATION STYLECONFIGURATION G
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
101461Interchangeable
interchangeable cross-reference
interchangeable
11813-1Interchangeable
interchangeable cross-reference
interchangeable
13218E0468-12Interchangeable
interchangeable cross-reference
interchangeable
10544876Interchangeable
interchangeable cross-reference
interchangeable
DF14AInterchangeable
interchangeable cross-reference
interchangeable
61210Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S11813-001?
S11813-001 is a NUT,UNION.
What parts can replace S11813-001?
There are 6 known substitutes for S11813-001: 101461, 11813-1, 13218E0468-12 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S11813-001?
S11813-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-457-2686. 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