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A631 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

A631: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL OVERALL, body_length: 0.410 INCHES NOMINAL IN, grip_length: 3.100 INCHES NOMINAL IN, head_diameter: 0.510 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, rating_method: WINDING TURNS SINGLE COMPONENT SINGLE WINDING, turn_quantity: 6-1/2 SINGLE COMPONENT SINGLE WINDING. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-202-6491, 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
MRO→ MRO_GENERAL→ A631
NSN: 4730-00-202-6491
NIINs: 002026491, 008342211, 010551456, 011278653
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_length0.410 INCHES NOMINAL IN
grip_length3.100 INCHES NOMINAL IN
head_diameter0.510 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
rating_methodWINDING TURNS SINGLE COMPONENT SINGLE WINDING
turn_quantity6-1/2 SINGLE COMPONENT SINGLE WINDING
actuation_typePULL AND PUSH
coil_form_typeHOLLOW SINGLE COMPONENT
inclosure_typeOPEN
overall_length5.849 INCHES NOMINAL IN
shank_diameter0.372 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
shear_strength18400 DOUBLE POUNDS PER SQUARE INCH
NSN4730-00-202-6491
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A631 · 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
SUBSTITUTES & CROSS-REFERENCES 9
1619280Reference document
Same NSN cross-reference
Reference document — Secondary reference
J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
N000287Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
119928Reference document
Same NSN cross-reference
Reference document — Secondary reference
58387-0604Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3/8X1/4 PTR-BReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A631?
A631 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace A631?
There are 9 known substitutes for A631: 1619280, J514, N000287 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A631?
A631 is cataloged in the U.S. Government catalog under NSN 4730-00-202-6491. This indicates validated use in U.S. government and defense supply chains.
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