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27540 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
Hercules · BALL BEARING
PRODUCT OVERVIEW

27540: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include material: STEEL CORROSION RESISTING SEAT, body_style: STRAIGHT THRU, body_width: 3.562 INCHES NOMINAL IN, body_height: 3.062 INCHES NOMINAL IN, body_length: 0.400 INCHES MAXIMUM IN, design_form: CURVED. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-355-2569, 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
27540
NSN: 3120-00-355-2569
NIINs: 003552569, 006645395, 006799536, 011905320, 012623207
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 45RP7 — DRESSTA NORTH AMERICA LTD (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SEAT
body_styleSTRAIGHT THRU
body_width3.562 INCHES NOMINAL IN
body_height3.062 INCHES NOMINAL IN
body_length0.400 INCHES MAXIMUM IN
design_formCURVED
corner_shapeSQUARE ALL CORNERS
inclosure_typeFULLY INCLOSED
overall_length8.000 INCHES NOMINAL IN
blade_edge_typeDOUBLE BEVEL
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating6.0 KILOHERTZ NOMINAL SINGLE COMPONENT
NSN3120-00-355-2569
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 27540 · Hercules ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 2.0020 INCHES MINIMUM AND 2.0030 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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BODY INSIDE DIAMETER: 1.7510 INCHES MINIMUM AND 1.7520 INCHES MAXIMUM IN
•
LUBRICANT ACCOMMODATION STYLE: GROOVED STRAIGHT AND CIRCULAR
•
MATERIAL: COPPER ALLOY 937 OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER2.0020 INCHES MINIMUM AND 2.0030 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH3.0000 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.7510 INCHES MINIMUM AND 1.7520 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED STRAIGHT AND CIRCULAR
MATERIALCOPPER ALLOY 937 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
D27540Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 27540?
27540 is a VALVE,REGULATING,FLUID PRESSURE manufactured by Hercules.
What parts can replace 27540?
There is 1 known substitute for 27540: D27540. Substitute compatibility should be verified for your specific system.
What is the NSN for 27540?
27540 is cataloged in the U.S. Government catalog under NSN 3120-00-355-2569. This indicates validated use in U.S. government and defense supply chains.
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