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Technical Data Sheet
PartsTable / COMPONENT / 5500030
5500030 ✓ 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 SHIELD,EXPANSION is a the manufacturer industrial component. Key specifications include material: STEEL, insert_size: 0.375 IN. DIA IN, fastener_type: NUT, overall_length: 2.750 INCHES NOMINAL IN, thread_provision: THREADED, surface_treatment: ZINC AND CHROMATE.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-128-1707, 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
5500030
NSN: 5340-01-128-1707
FSC: 5340
CAGE: 11239 — HILTI INC (USA)
SPECIFICATIONS
materialSTEEL
insert_size0.375 IN. DIA IN
fastener_typeNUT
unit_quantity1
overall_length2.750 INCHES NOMINAL IN
thread_provisionTHREADED
surface_treatmentZINC AND CHROMATE
safe_operating_load_rating3580.0 POUNDS NOMINAL LBS
hole_accommodation_diameter0.375 INCHES NOMINAL IN
nondefinitive_spec/std_data2 GROUP AND 4 TYPE AND 1 CLASS
insert_type_for_which_designedSTUD BOLT
NSN5340-01-128-1707
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5500030 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
•
HOLE ACCOMMODATION DIAMETER: 0.375 INCHES NOMINAL IN
•
SAFE OPERATING LOAD RATING: 3580.0 POUNDS NOMINAL LBS
•
NONDEFINITIVE SPEC/STD DATA: 2 GROUP AND 4 TYPE AND 1 CLASS
•
MATERIAL: STEEL
•
UNIT QUANTITY: 1
•
INSERT SIZE: 0.375 IN. DIA IN
•
FASTENER TYPE: NUT
TECHNICAL CHARACTERISTICS (FLIS)
HOLE ACCOMMODATION DIAMETER0.375 INCHES NOMINAL IN
SAFE OPERATING LOAD RATING3580.0 POUNDS NOMINAL LBS
NONDEFINITIVE SPEC/STD DATA2 GROUP AND 4 TYPE AND 1 CLASS
OVERALL LENGTH2.750 INCHES NOMINAL IN
MATERIALSTEEL
UNIT QUANTITY1
INSERT SIZE0.375 IN. DIA IN
FASTENER TYPENUT
SURFACE TREATMENTZINC AND CHROMATE
THREAD PROVISIONTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
A-A-1925Upgraded Successor
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FFS325Upgraded Successor
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successor
AA1925-105Upgraded Successor
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successor
AA55615-106Upgraded Successor
successor cross-reference
successor
PT6424DIAM0NDNYUpgraded Successor
successor cross-reference
successor
A-A-1923Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5500030?
5500030 is a SHIELD,EXPANSION.
What parts can replace 5500030?
There are 15 known substitutes for 5500030: A-A-1925, FFS325, AA1925-105 and 12 more. Substitute compatibility should be verified for your specific system.
Is 5500030 still available?
5500030 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026