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Technical Data Sheet
151657 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SWITCH,PRESSURE is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, head_style: FLAT CHAMFER, seal_width: 0.438 INCHES NOMINAL IN, head_height: 0.062 INCHES NOMINAL IN, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-171-7924, 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 151657
NSN: 5330-00-171-7924
FSC: 5330
CAGE: 52983 — HEWLETT-PACKARD CO WALTHAM DIV (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
head_styleFLAT CHAMFER
seal_width0.438 INCHES NOMINAL IN
head_height0.062 INCHES NOMINAL IN
thread_class2A A
head_diameter0.219 INCHES NOMINAL IN
thread_length0.312 INCHES MINIMUM IN
proof_pressure4500.00 POUNDS PER SQUARE INCH LBS
screw_materialSTEEL
fastener_length0.312 INCHES NOMINAL IN
thread_directionRIGHT-HAND
NSN5330-00-171-7924
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 151657 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
SEALING ELEMENT STYLE: ANGULAR
SEAL WIDTH: 0.438 INCHES NOMINAL IN
CASE STYLE: SQUARE
ACCOMMODATED SHAFT DIAMETER: 0.969 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
HOUSING BORE DIAMETER: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.438 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.969 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
HOUSING BORE DIAMETER1.750 INCHES NOMINAL IN
MATERIALSTEEL CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
125168Interchangeable
interchangeable cross-reference
interchangeable
85434Interchangeable
interchangeable cross-reference
interchangeable
MIS17328-3-7Interchangeable
interchangeable cross-reference
interchangeable
15165-7Interchangeable
interchangeable cross-reference
interchangeable
2D0599Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 151657?
151657 is a SWITCH,PRESSURE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 151657?
There are 5 known substitutes for 151657: 125168, 85434, MIS17328-3-7 and 2 more. Substitute compatibility should be verified for your specific system.
Is 151657 still available?
151657 is currently cancelled.
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