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56660 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
Tactic · BOLT SCREW
PRODUCT OVERVIEW

56660: VALVE,REGULATING,FLUID PRESSURE.

Challenge yourself with this Scandinavian pattern! 500 pcs. Key specifications include part_name_assigned_by_controlling_agency: VALVE,SUCTION.

This part is cataloged in the U.S. Government catalog under NSN 5325-00-420-2829, 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
56660
NSN: 5325-00-420-2829
NIINs: 004202829, 010465599, 011060055, 016960084
FSC: 5325 — Fastening Devices
CAGE: F2133 — DENISON HYDRAULICS FRANCE SAS (FRA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyVALVE,SUCTION
NSN5325-00-420-2829
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 56660 · Tactic ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LENGTH: 0.138 INCHES NOMINAL IN
•
INSERT SIZE: 0.173 IN. MIN,0.193 IN. MAX IN
•
STYLE DESIGNATOR: COIL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
THREAD QUANTITY PER INCH: 40
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS
LENGTH0.138 INCHES NOMINAL IN
INSERT SIZE0.173 IN. MIN,0.193 IN. MAX IN
STYLE DESIGNATORCOIL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7245 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.138 INCHES IN
THREAD QUANTITY PER INCH40
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNF
SUBSTITUTES & CROSS-REFERENCES 1
3591-06CN0138Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 56660?
56660 is a VALVE,REGULATING,FLUID PRESSURE manufactured by Tactic.
What parts can replace 56660?
There is 1 known substitute for 56660: 3591-06CN0138. Substitute compatibility should be verified for your specific system.
What is the NSN for 56660?
56660 is cataloged in the U.S. Government catalog under NSN 5325-00-420-2829. 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.