PartsTable
Technical Data Sheet
Download PDF

J531 — COIL,RADIO FREQUENCY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

J531: COIL,RADIO FREQUENCY.

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_type: SOLID, head_type: SOLID, core_depth: 0.475 INCHES NOMINAL IN, reducer_type: CONCENTRIC, thread_class: 3A ALL ENDS A. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-011-3175, 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
J531
NSN: 4730-00-011-3175
NIINs: 000113175, 000113176, 000127951, 000444689, 000444693, 000444699, 000523666, 000575555, 000822055, 000892515, 002029170, 002029390, 002873281, 004606725, 005864160, 007026932, 008269680, 008427841, 008445721, 010290172, 010374343, 010680590, 010983920, 011147131, 011381968, 011518965, 011774734, 011921618, 012137733, 012692415, 013822857, 013863328, 013866634, 013868368, 014079281, 014125203, 014584562, 014605296, 014655486, 014659669, 014661441, 014983874, 015085709, 015232475, 016322373, 016664912, 016666938, 017279470
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_typeSOLID
head_typeSOLID
core_depth0.475 INCHES NOMINAL IN
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
exterior_colorGRAY/GREY OVERALL
drive_end_styleRAISED SQUARE
connection_stylePLAIN
special_featuresBRASS PLUG FOR INTERNAL 3/4 INCH PIPE THREADS IN
thread_directionRIGHT-HAND INTERNAL
features_providedTHREAD RELIEF
NSN4730-00-011-3175
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J531 · 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
•
HEAD TYPE: SOLID
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.125 INCHES IN
•
CONNECTION STYLE: PLAIN
•
DRIVE END STYLE: RAISED SQUARE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,COMP 3 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 17.8 BAR MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 0.125 INCHES EXTERNAL IN
TECHNICAL CHARACTERISTICS
HEAD TYPESOLID
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.125 INCHES IN
CONNECTION STYLEPLAIN
DRIVE END STYLERAISED SQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,COMP 3 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OPERATING PRESSURE17.8 BAR MAXIMUM
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE0.125 INCHES EXTERNAL IN
SPECIFICATION/STANDARD DATA81348-WW-P-460 GOVERNMENT SPECIFICATION AND 81349-MIL-F-1184 TY1 GOVERNMENT SPECIFICATION
MAXIMUM OPERATING TEMP200.0 CELSIUS DEGC
SUBSTITUTES & CROSS-REFERENCES 8
109BReference document
Same NSN cross-reference
Reference document — Secondary reference
3151X2Reference document
Same NSN cross-reference
Reference document — Secondary reference
1FC728Reference document
Same NSN cross-reference
Reference document — Secondary reference
J531 FIG 1AReference document
Same NSN cross-reference
Reference document — Secondary reference
109B1-8NPTReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
D-144415 PIECEReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy J531?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is J531?
J531 is a COIL,RADIO FREQUENCY.
What parts can replace J531?
There are 8 known substitutes for J531: 109B, 3151X2, 1FC728 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for J531?
J531 is cataloged in the U.S. Government catalog under NSN 4730-00-011-3175. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — J531

✓ 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.