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Technical Data Sheet
28131 ✓ Verified by PartsTable
3M · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

Basic rPDUs deliver reliable power to critical IT equipment within a rack or cabinet. Key specifications include material: GLASS PROTECTIVE CRYSTAL, dial_size: 3.50 IN. DIA IN, bezel_type: SNAP-ON, scale_name: PRESSURE, scale_type: SINGLE, scale_range: +0.000 TO 5000.000 POUNDS PRESSURE PER SQUARE INCH LBS.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-286-6854, 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
28131
NSN: 5330-00-286-6854
FSC: 5330
CAGE: 76292 — MICHIGAN LEATHER PRODUCTS CO (USA)
SPECIFICATIONS
materialGLASS PROTECTIVE CRYSTAL
dial_size3.50 IN. DIA IN
bezel_typeSNAP-ON
scale_namePRESSURE
scale_typeSINGLE
scale_range+0.000 TO 5000.000 POUNDS PRESSURE PER SQUARE INCH LBS
pointer_typeINDICATING
adjustabilityNONADJUSTABLE
overall_depth1.156 INCHES NOMINAL IN
pointer_colorBLACK
stud_locationBACK
stud_quantity2
NSN5330-00-286-6854
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28131 MFR: 3M ⚠ 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
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1600 FEET PER MINUTE FT
SEAL WIDTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
SEALING ELEMENT STYLE: ANGULAR
HOUSING BORE DIAMETER: 1.309 INCHES MINIMUM AND 1.311 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER: 0.875 INCHES NOMINAL IN
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
CASE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1600 FEET PER MINUTE FT
SEAL WIDTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.309 INCHES MINIMUM AND 1.311 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER0.875 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
AC183-1 1-2Interchangeable
interchangeable cross-reference
interchangeable
281-31Interchangeable
interchangeable cross-reference
interchangeable
639095Interchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
3772Interchangeable
interchangeable cross-reference
interchangeable
03-2075Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28131?
28131 is a PULLEY,GROOVE manufactured by 3M.
What parts can replace 28131?
There are 10 known substitutes for 28131: AC183-1 1-2, 281-31, 639095 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28131?
28131 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-286-6854. This indicates validated use in U.S. government and defense supply chains.
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