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Technical Data Sheet
102945-1 ✓ 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

The MICROCIRCUIT,DIGITAL is a 3M industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, case_style: RECESSED, seal_width: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN, body_height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, body_length: 0.840 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-477-0533, 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
102945-1
NSN: 5330-00-477-0533
FSC: 5330
CAGE: 56190 — METADURE PARTS & SALES, INC. (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
case_styleRECESSED
seal_width0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
body_height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
body_length0.840 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
features_providedHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND LOW POWER AND NEGATIVE EDGE TRIGGERED AND PRESETTABLE AND SCHOTTKY AND W/CLEAR AND W/ENABLE
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
inclosure_materialCERAMIC AND GLASS
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
NSN5330-00-477-0533
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 102945-1 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
CASE STYLE: RECESSED
SEAL WIDTH: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
SEALING ELEMENT STYLE: ANGULAR
ACCOMMODATED SHAFT DIAMETER: 4.995 INCHES MINIMUM AND 5.005 INCHES MAXIMUM IN
HOUSING BORE DIAMETER: 6.373 INCHES MINIMUM AND 6.377 INCHES MAXIMUM IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLERECESSED
SEAL WIDTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT DIAMETER4.995 INCHES MINIMUM AND 5.005 INCHES MAXIMUM IN
HOUSING BORE DIAMETER6.373 INCHES MINIMUM AND 6.377 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
SN74LS76JInterchangeable
interchangeable cross-reference
interchangeable
01-49420-23Interchangeable
interchangeable cross-reference
interchangeable
SN54LS76JInterchangeable
interchangeable cross-reference
interchangeable
500-637-12BWInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 102945-1?
102945-1 is a MICROCIRCUIT,DIGITAL manufactured by 3M.
What parts can replace 102945-1?
There are 4 known substitutes for 102945-1: SN74LS76J, 01-49420-23, SN54LS76J and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 102945-1?
102945-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-477-0533. This indicates validated use in U.S. government and defense supply chains.
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