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5-13-11040-3 — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5-13-11040-3: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: TUBE FITTING LOCKNUT, thread_series: UNF, special_features: FEMALE, STRAIGHT, SWIVEL, thread_direction: RIGHT-HAND, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-703-2988, 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
5-13-11040-3
NSN: 4730-01-703-2988
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 4JKJ9 — BERG MANUFACTURING, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleTUBE FITTING LOCKNUT
thread_seriesUNF
special_featuresFEMALE, STRAIGHT, SWIVEL
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
nominal_thread_size1.25 INCHES IN
end_item_identification8145-01-659-8110;SHIPPING AND STORAGE CONTAINER,REFRIGERATION
thread_quantity_per_inch12
part_name_assigned_by_controlling_agencyADAPTER, ROTOLOCK
NSN4730-01-703-2988
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5-13-11040-3 · 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
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.25 INCHES IN
•
SURFACE TREATMENT: ZINC OVERALL
•
NUT STYLE: TUBE FITTING LOCKNUT
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.25 INCHES IN
SPECIAL FEATURESFEMALE, STRAIGHT, SWIVEL
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYADAPTER, ROTOLOCK
NUT STYLETUBE FITTING LOCKNUT
END ITEM IDENTIFICATION8145-01-659-8110;SHIPPING AND STORAGE CONTAINER,REFRIGERATION
THREAD QUANTITY PER INCH12
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
5-13-11040Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5-13-11040-3?
5-13-11040-3 is a LOCKNUT,TUBE FITTING.
What parts can replace 5-13-11040-3?
There is 1 known substitute for 5-13-11040-3: 5-13-11040. Substitute compatibility should be verified for your specific system.
What is the NSN for 5-13-11040-3?
5-13-11040-3 is cataloged in the U.S. Government catalog under NSN 4730-01-703-2988. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.