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2R217 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2R217: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 8.500 INCHES NOMINAL IN, material: STEEL STANDOFF, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), thread_length: 1.120 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, flange_diameter: 0.690 INCHES NOMINAL IN, flange_thickness: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-008-6051, 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
2R217
NSN: 5340-00-008-6051
FSC: 5340 — Hardware, Commercial
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
length8.500 INCHES NOMINAL IN
materialSTEEL STANDOFF
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
thread_length1.120 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
flange_diameter0.690 INCHES NOMINAL IN
flange_thickness2.000 INCHES NOMINAL IN
style_designatorFLANGED WITH LEFT INTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
nominal_thread_size0.750 INCHES RIGHT EXTERNAL IN
thread_quantity_per_inch10 RIGHT EXTERNAL
thread_series_designatorUNF LEFT INTERNAL (INCLUDES THRU THREAD)
material_document_and_classification1E303 CF FSC-11083 MFR REF SINGLE MATERIAL RESPONSE STANDOFF
NSN5340-00-008-6051
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2R217 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
•
FLANGE DIAMETER: 0.690 INCHES NOMINAL IN
•
LENGTH: 8.500 INCHES NOMINAL IN
•
FLANGE THICKNESS: 2.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.010 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: FLANGED WITH LEFT INTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: 1E303 CF FSC-11083 MFR REF SINGLE MATERIAL RESPONSE STANDOFF
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.690 INCHES NOMINAL IN
LENGTH8.500 INCHES NOMINAL IN
FLANGE THICKNESS2.000 INCHES NOMINAL IN
THREAD LENGTH1.010 INCHES NOMINAL RIGHT EXTERNAL IN
THREAD LENGTH1.120 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORFLANGED WITH LEFT INTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATION1E303 CF FSC-11083 MFR REF SINGLE MATERIAL RESPONSE STANDOFF
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.500 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
2R217-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
2R0217Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2R217?
2R217 is a STANDOFF,THREADED,SPACING.
What parts can replace 2R217?
There are 2 known substitutes for 2R217: 2R217-00, 2R0217. Substitute compatibility should be verified for your specific system.
What is the NSN for 2R217?
2R217 is cataloged in the U.S. Government catalog under NSN 5340-00-008-6051. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.