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98-2577 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The HELMET,SAFETY,INSER is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: HIGH-DENSITY POLYETHYLENE MATERIAL; SLOTS ON CAPS FOR MOUNTING ACCESSORIES; WITH STAYS-ON SUSPENSION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-464-4958, 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
98-2577
NSN: 4240-01-464-4958
FSC: 4240
CAGE: 89875 — DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
general_characteristics_item_descriptionHIGH-DENSITY POLYETHYLENE MATERIAL; SLOTS ON CAPS FOR MOUNTING ACCESSORIES; WITH STAYS-ON SUSPENSION
NSN4240-01-464-4958
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HELMET,SAFETY,INSER TITLE COMPONENT PN 98-2577 MFR HELMET,SAFETY,INSER
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: HIGH-DENSITY POLYETHYLENE MATERIAL; SLOTS ON CAPS FOR MOUNTING ACCESSORIES; WITH STAYS-ON SUSPENSION
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONHIGH-DENSITY POLYETHYLENE MATERIAL; SLOTS ON CAPS FOR MOUNTING ACCESSORIES; WITH STAYS-ON SUSPENSION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
4-7393-2Interchangeable
interchangeable cross-reference
interchangeable
M330K287Interchangeable
interchangeable cross-reference
interchangeable
MS51065-51-2Interchangeable
interchangeable cross-reference
interchangeable
41W867-10Interchangeable
interchangeable cross-reference
interchangeable
01162MInterchangeable
interchangeable cross-reference
interchangeable
1306Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 98-2577?
98-2577 is a HELMET,SAFETY,INSER.
What parts can replace 98-2577?
There are 8 known substitutes for 98-2577: 4-7393-2, M330K287, MS51065-51-2 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 98-2577?
98-2577 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-01-464-4958. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026