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SAEJ514-4-070118C — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SAEJ514-4-070118C: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: TUBE FITTING LOCKNUT, nut_height: 0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, special_features: BEARING SURFACE TYPE:CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-052-7673, 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
SAEJ514-4-070118C
NSN: 4730-00-052-7673
NIINs: 000527673, 016956975
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleTUBE FITTING LOCKNUT
nut_height0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
special_featuresBEARING SURFACE TYPE:CHAMFERED
thread_directionRIGHT-HAND
width_across_flats0.5625 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN
nominal_thread_size0.4375 INCHES IN
end_item_identification01-646-3121
thread_quantity_per_inch20
part_name_assigned_by_controlling_agencyBULKHEAD LOCKNUT
NSN4730-00-052-7673
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SAEJ514-4-070118C · 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
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
THREAD SERIESUN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.438 INCHES IN
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
END ITEM IDENTIFICATIONMRAP - COMMON NSN - USED ON 3 MRAP VARIANTS AND 38 OTHER WEAPON SYSTEMS INCLUDING Z9N - AIRCRAFT, FA-18, A - D, E/F, G (GROWLER); HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS) A
THREAD QUANTITY PER INCH20
MATERIALSTEEL OVERALL
NOMINAL TUBE OUTSIDE DIAMETER0.250 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 6
C5924X4Reference document
Same NSN cross-reference
Reference document — Secondary reference
4-070118CReference document
Same NSN cross-reference
Reference document — Secondary reference
C7924X4Reference document
Same NSN cross-reference
Reference document — Secondary reference
GS1523Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5924X4Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SAEJ514-4-070118C?
SAEJ514-4-070118C is a LOCKNUT,TUBE FITTING.
What parts can replace SAEJ514-4-070118C?
There are 6 known substitutes for SAEJ514-4-070118C: C5924X4, 4-070118C, C7924X4 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SAEJ514-4-070118C?
SAEJ514-4-070118C is cataloged in the U.S. Government catalog under NSN 4730-00-052-7673. 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.