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72A356603-2003 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

72A356603-2003: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.020 INCHES NOMINAL IN, length: 6.150 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN, material: ALUMINUM ALLOY 6061, body_thickness: 0.187 INCHES NOMINAL IN, surface_treatment: ANODIZE, securing_device_type: THREADED FASTENER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-304-6861, 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
72A356603-2003
NSN: 5340-01-304-6861
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
width3.020 INCHES NOMINAL IN
length6.150 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN
materialALUMINUM ALLOY 6061
body_thickness0.187 INCHES NOMINAL IN
special_featuresSHAPE,SIX SIDES; SIX MTG HOLES 0.213 IN. MIN 0.219 IN. MAX DIA; FOUR MTG HOLES COUNTERSINK 0.625 IN. MIN 0.635 IN. MAX DIA BY 0.125 IN. DP; TWO MTG HOLES SPOTFACED TO 0.062 IN. THK; SURFACE CURVED IN
surface_treatmentANODIZE
securing_device_typeTHREADED FASTENER
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
distance_between_holes_along_width2.260 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/11,COND 0 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OR PS13201, TYPE 2, CLASS 1, MACDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
NSN5340-01-304-6861
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 72A356603-2003 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
•
LENGTH: 6.150 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OR PS13201, TYPE 2, CLASS 1, MACDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
•
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH: 2.570 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 2.260 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11,COND 0 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: THREADED FASTENER
TECHNICAL CHARACTERISTICS
LENGTH6.150 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OR PS13201, TYPE 2, CLASS 1, MACDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH2.570 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH2.260 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11,COND 0 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
SPECIAL FEATURESSHAPE,SIX SIDES; SIX MTG HOLES 0.213 IN. MIN 0.219 IN. MAX DIA; FOUR MTG HOLES COUNTERSINK 0.625 IN. MIN 0.635 IN. MAX DIA BY 0.125 IN. DP; TWO MTG HOLES SPOTFACED TO 0.062 IN. THK; SURFACE CURVED IN
SURFACE TREATMENTANODIZE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 72A356603-2003?
72A356603-2003 is a COVER,ACCESS.
What is the NSN for 72A356603-2003?
72A356603-2003 is cataloged in the U.S. Government catalog under NSN 5340-01-304-6861. 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.