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R557-49340PC21 — LEVER,MANUAL CONTROL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R557-49340PC21: LEVER,MANUAL CONTROL.

The LEVER,MANUAL CONTROL is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-00-394-7649, 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
R557-49340PC21
NSN: 5340-00-394-7649
FSC: 5340 — Hardware, Commercial
CAGE: 16497 — DRESSER, INC. DBA DRESSER EQUIPMENT GROUP DIV INDUSTRIAL VALVE OPERATIONS, DRESSE (USA)
SPECIFICATIONS
Part NumberR557-49340PC21
NSN5340-00-394-7649
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R557-49340PC21 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 8
C755D11Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
B555-49070APC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
A557-48970PC21Reference document
Same NSN cross-reference
Reference document — Secondary reference
J7649Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
R555-49480PC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
C755011BReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R557-49340PC21?
R557-49340PC21 is a LEVER,MANUAL CONTROL.
What parts can replace R557-49340PC21?
There are 8 known substitutes for R557-49340PC21: C755D11, B555-49070APC18, A557-48970PC21 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R557-49340PC21?
R557-49340PC21 is cataloged in the U.S. Government catalog under NSN 5340-00-394-7649. 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.