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303842 — COVER,ELECTRONIC COMMUNICATION E

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

303842: COVER,ELECTRONIC COMMUNICATION E.

COVER,ELECTRONIC COMMUNICATION E. Key specifications include head_style: HEXAGON, head_height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.594 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES THREADS, fastener_length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-068-0508, 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
MRO→ MRO_GENERAL→ 303842
NSN: 5305-00-068-0508
NIINs: 000680508, 012565602, 013443543, 016169710
FSC: 5305 — Screws
CAGE: H0G87 — WIBA ZEVENAAR B.V. (NLD)
SPECIFICATIONS
head_styleHEXAGON
head_height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
thread_class2A A
thread_length0.594 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES THREADS
fastener_length0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
special_featuresWEAPON SYSTEM ESSENTIAL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
end_item_identificationBASE TEN SYSTEMS,WEAPON CONTROL PANEL NO. 1,P/N: 31000
nominal_thread_diameter0.250 INCHES IN
NSN5305-00-068-0508
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 303842 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: 63.0 MICROINCHES THREADS
•
HEAD HEIGHT: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.594 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES THREADS
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
FASTENER LENGTH0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.594 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONFEAT
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 10
10082360Reference document
Same NSN cross-reference
Reference document — Informative reference only
MS90728-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
803-5959276-06Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
03-2-1333Reference document
Same NSN cross-reference
Reference document — Secondary reference
22489R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
91247A540Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 303842?
303842 is a COVER,ELECTRONIC COMMUNICATION E. It is classified as a MRO (MRO_GENERAL).
What parts can replace 303842?
There are 10 known substitutes for 303842: 10082360, MS90728-6, 803-5959276-06 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 303842?
303842 is cataloged in the U.S. Government catalog under NSN 5305-00-068-0508. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.