PartsTable
Technical Data Sheet
NAS842-12A ✓ 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

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: ALUMINUM ALLOY 3003, drive_type: SERRATED, design_type: THREADED, overall_diameter: 1.750 INCHES NOMINAL IN, nondefinitive_spec/std_data: 1 TYPE AND C CLASS AND 12 SIZE, material_document_and_classification: QQ-A-250/2, 0 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-804-1220, 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
NAS842-12A
NSN: 5340-00-804-1220
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 3003
drive_typeSERRATED
design_typeTHREADED
overall_diameter1.750 INCHES NOMINAL IN
nondefinitive_spec/std_data1 TYPE AND C CLASS AND 12 SIZE
material_document_and_classificationQQ-A-250/2, 0 FED SPEC SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator1-1/16-12 UN
NSN5340-00-804-1220
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS842-12A 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
DESIGN TYPE: THREADED
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND C CLASS AND 12 SIZE
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1-1/16-12 UN
DRIVE TYPE: SERRATED
MATERIAL: ALUMINUM ALLOY 3003
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/2, 0 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL DIAMETER: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPETHREADED
NONDEFINITIVE SPEC/STD DATA1 TYPE AND C CLASS AND 12 SIZE
THREAD SIZE AND SERIES/TYPE DESIGNATOR1-1/16-12 UN
DRIVE TYPESERRATED
MATERIALALUMINUM ALLOY 3003
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/2, 0 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL DIAMETER1.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
NAS847Upgraded Successor
successor cross-reference
successor
MIL-C-5501/7Upgraded Successor
successor cross-reference
successor
M5501/7-F24Upgraded Successor
successor cross-reference
successor
AEP1543-2Upgraded Successor
successor cross-reference
successor
EC14Upgraded Successor
successor cross-reference
successor
36B505139P4Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS842-12A?
NAS842-12A is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace NAS842-12A?
There are 19 known substitutes for NAS842-12A: NAS847, MIL-C-5501/7, M5501/7-F24 and 16 more. Substitute compatibility should be verified for your specific system.
Is NAS842-12A still available?
NAS842-12A is currently cancelled.
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