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AA1923-304 — SHIELD,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AA1923-304: SHIELD,EXPANSION.

The SHIELD,EXPANSION is a the manufacturer industrial component. Key specifications include head_style: SQUARE, insert_size: 1/2 IN.-13 THD IN, fastener_type: BOLT, nominal_length: 5.000 INCHES IN, overall_length: 2.250 INCHES NOMINAL IN, style_designator: DOUBLE EXPANSION. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-281-1458, 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
AA1923-304
NSN: 5340-00-281-1458
FSC: 5340 — Hardware, Commercial
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
head_styleSQUARE
insert_size1/2 IN.-13 THD IN
fastener_typeBOLT
unit_quantity2
nominal_length5.000 INCHES IN
overall_length2.250 INCHES NOMINAL IN
style_designatorDOUBLE EXPANSION
thread_provisionTHREADED
features_providedINSTALLATION SETTING TOOL
safe_operating_load_rating550.0 POUNDS NOMINAL LBS
hole_accommodation_diameter0.875 INCHES NOMINAL IN
nondefinitive_spec/std_data2 GROUP AND 2 TYPE AND 2 CLASS AND 2 STYLE
NSN5340-00-281-1458
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AA1923-304 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
•
THREAD PROVISION: THREADED
•
HOLE ACCOMMODATION DIAMETER: 0.875 INCHES NOMINAL IN
•
NOMINAL LENGTH: 5.000 INCHES IN
•
INSERT SIZE: 1/2 IN.-13 THD IN
•
STYLE DESIGNATOR: DOUBLE EXPANSION
•
FASTENER TYPE: BOLT
•
FEATURES PROVIDED: INSTALLATION SETTING TOOL
TECHNICAL CHARACTERISTICS
THREAD PROVISIONTHREADED
HOLE ACCOMMODATION DIAMETER0.875 INCHES NOMINAL IN
NOMINAL LENGTH5.000 INCHES IN
INSERT SIZE1/2 IN.-13 THD IN
STYLE DESIGNATORDOUBLE EXPANSION
FASTENER TYPEBOLT
OVERALL LENGTH2.250 INCHES NOMINAL IN
FEATURES PROVIDEDINSTALLATION SETTING TOOL
INSERT TYPE FOR WHICH DESIGNEDMACHINE BOLT
HEAD STYLESQUARE
SUBSTITUTES & CROSS-REFERENCES 2
A-A-1923Reference document
Same NSN cross-reference
Reference document — Identification reference
FFS325Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AA1923-304?
AA1923-304 is a SHIELD,EXPANSION.
What parts can replace AA1923-304?
There are 2 known substitutes for AA1923-304: A-A-1923, FFS325. Substitute compatibility should be verified for your specific system.
What is the NSN for AA1923-304?
AA1923-304 is cataloged in the U.S. Government catalog under NSN 5340-00-281-1458. This indicates validated use in U.S. government and defense supply chains.
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