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28687 — ACTUATOR,ELECTRO-MECHANICAL,LINE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

28687: ACTUATOR,ELECTRO-MECHANICAL,LINE.

ACTUATOR,ELECTRO-MECHANICAL,LINE. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, body_width: 0.688 INCHES NOMINAL IN, case_style: SQUARE, seal_width: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, body_height: 1.719 INCHES NOMINAL IN, body_length: 1.281 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-068-0345, 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
28687
NSN: 5330-00-068-0345
NIINs: 000680345, 005199196, 016302088
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
body_width0.688 INCHES NOMINAL IN
case_styleSQUARE
seal_width0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
body_height1.719 INCHES NOMINAL IN
body_length1.281 INCHES NOMINAL IN
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeHERMETICALLY SEALED
inductance_typeFIXED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
outside_diameter3.756 INCHES NOMINAL IN
NSN5330-00-068-0345
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28687 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
OUTSIDE DIAMETER: 3.756 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.751 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3600 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 2.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
SEAL WIDTH0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
OUTSIDE DIAMETER3.756 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.751 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3600 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.875 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28687?
28687 is a ACTUATOR,ELECTRO-MECHANICAL,LINE.
What is the NSN for 28687?
28687 is cataloged in the U.S. Government catalog under NSN 5330-00-068-0345. This indicates validated use in U.S. government and defense supply chains.
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