PartsTable
Technical Data Sheet
Download PDF

IT-2561 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

IT-2561: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER BODY, body_height: 9.500 INCHES NOMINAL IN, overall_height: 44.500 INCHES NOMINAL IN, mounting_method: LIP, style_designator: THRU-HOLE, EXPANDABLE, material_thickness: 0.060 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-059-1695, 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
IT-2561
NSN: 5340-01-059-1695
FSC: 5340 — Hardware, Commercial
CAGE: 88759 — DYNATECT MANUFACTURING, INC. DBA DYNATECT MANUFACTURING INC (USA)
SPECIFICATIONS
materialRUBBER BODY
body_height9.500 INCHES NOMINAL IN
overall_height44.500 INCHES NOMINAL IN
mounting_methodLIP
style_designatorTHRU-HOLE, EXPANDABLE
material_thickness0.060 INCHES NOMINAL IN
body_outside_diameter5.250 INCHES NOMINAL IN
opening_inside_diameter3.060 INCHES NOMINAL IN
material_document_and_classificationMIL-STD-417 MIL STD SINGLE MATERIAL RESPONSE BODY
NSN5340-01-059-1695
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: IT-2561 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
•
OPENING INSIDE DIAMETER: 3.060 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 5.250 INCHES NOMINAL IN
•
MOUNTING METHOD: LIP
•
BODY HEIGHT: 9.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE, EXPANDABLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-STD-417 MIL STD SINGLE MATERIAL RESPONSE BODY
•
MATERIAL THICKNESS: 0.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT44.500 INCHES NOMINAL IN
OPENING INSIDE DIAMETER3.060 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER5.250 INCHES NOMINAL IN
MOUNTING METHODLIP
BODY HEIGHT9.500 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE, EXPANDABLE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-STD-417 MIL STD SINGLE MATERIAL RESPONSE BODY
MATERIAL THICKNESS0.060 INCHES NOMINAL IN
MATERIALRUBBER BODY
SUBSTITUTES & CROSS-REFERENCES 1
912167-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy IT-2561?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is IT-2561?
IT-2561 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace IT-2561?
There is 1 known substitute for IT-2561: 912167-1. Substitute compatibility should be verified for your specific system.
What is the NSN for IT-2561?
IT-2561 is cataloged in the U.S. Government catalog under NSN 5340-01-059-1695. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — IT-2561

✓ 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.