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177891 — SWITCH,LEVER

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

177891: SWITCH,LEVER.

The SWITCH,LEVER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT B, body_width: 2.500 INCHES NOMINAL IN, case_style: RECESSED, seal_width: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN, body_height: 3.375 INCHES NOMINAL IN, body_length: 6.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-838-6929, 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→ 177891
NSN: 5330-00-838-6929
NIINs: 008386929, 013055514, 014900155
FSC: 5330 — Packing and Gasket Materials
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT B
body_width2.500 INCHES NOMINAL IN
case_styleRECESSED
seal_width0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
body_height3.375 INCHES NOMINAL IN
body_length6.250 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodSCREW
special_featuresLEVEL SWITCH LS-240 TYPED
housing_bore_diameter7.498 INCHES MINIMUM AND 7.502 INCHES MAXIMUM IN
sealing_element_styleVERTICAL-ANGULAR
end_item_identificationELECTRICAL
NSN5330-00-838-6929
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 177891 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
KEY FEATURES
•
SEAL WIDTH: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
•
HOUSING BORE DIAMETER: 7.498 INCHES MINIMUM AND 7.502 INCHES MAXIMUM IN
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 6.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT A
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
SEALING ELEMENT STYLEVERTICAL-ANGULAR
HOUSING BORE DIAMETER7.498 INCHES MINIMUM AND 7.502 INCHES MAXIMUM IN
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER6.000 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
MATERIALSTEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 CASE
SUBSTITUTES & CROSS-REFERENCES 1
414080 ITEM 41Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 177891?
177891 is a SWITCH,LEVER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 177891?
There is 1 known substitute for 177891: 414080 ITEM 41. Substitute compatibility should be verified for your specific system.
What is the NSN for 177891?
177891 is cataloged in the U.S. Government catalog under NSN 5330-00-838-6929. This indicates validated use in U.S. government and defense supply chains.
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