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S-557 — SLEEVE,EXPANSION MANDREL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S-557: SLEEVE,EXPANSION MANDREL.

The SLEEVE,EXPANSION MANDREL is a the manufacturer industrial component. Key specifications include special_features: USED ON A K16 AND J-K16 HONING UNIT. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-220-9041, 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
S-557
NSN: 4810-00-220-9041
NIINs: 002209041, 006756555, 013538080
FSC: 4810 — Valves, Powered
CAGE: K0256 — CLYDE PUMPS LTD (GBR)
SPECIFICATIONS
special_featuresUSED ON A K16 AND J-K16 HONING UNIT
NSN4810-00-220-9041
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S-557 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-B138-58 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B138-58 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
A17505PC68Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S-557?
S-557 is a SLEEVE,EXPANSION MANDREL.
What parts can replace S-557?
There is 1 known substitute for S-557: A17505PC68. Substitute compatibility should be verified for your specific system.
What is the NSN for S-557?
S-557 is cataloged in the U.S. Government catalog under NSN 4810-00-220-9041. 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.