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Technical Data Sheet
172526 ✓ Verified by PartsTable
· 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 PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM IN, style_designator: ROUND BEND, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.312 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-050-1588, 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
172526
NSN: 5340-00-050-1588
FSC: 5340
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
thread_length1.250 INCHES MINIMUM IN
style_designatorROUND BEND
thread_directionRIGHT-HAND
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
inside_distance_between_shanks1.000 INCHES NOMINAL IN
material_document_and_classification019 FSCM 29510 MFR REF SINGLE MATERIAL RESPONSE OVERALL
distance_from_inside_center_of_bend_to_bolt_end2.125 INCHES NOMINAL IN
NSN5340-00-050-1588
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 172526 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
MATERIAL THICKNESS: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
MATERIAL: STEEL COMP 1010
OUTSIDE DIAMETER: 0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
STYLE DESIGNATOR: CONCAVE
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE
RADIUS: 0.469 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1010
OUTSIDE DIAMETER0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
STYLE DESIGNATORCONCAVE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD SINGLE MATERIAL RESPONSE
RADIUS0.469 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
172526-H1Upgraded Successor
successor cross-reference
successor
172526Upgraded Successor
successor cross-reference
successor
172547Interchangeable
interchangeable cross-reference
interchangeable
12G101Interchangeable
interchangeable cross-reference
interchangeable
117920Interchangeable
interchangeable cross-reference
interchangeable
117917Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 172526?
172526 is a PLUG,EXPANSION.
What parts can replace 172526?
There are 23 known substitutes for 172526: 172526-H1, 172526, 172547 and 20 more. Substitute compatibility should be verified for your specific system.
Is 172526 still available?
172526 is currently cancelled.
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