PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6121Plate,instruction

Hiller Aircraft Corporation · NSN 9905-00-474-3581 · FSC 9905 · No Item Name Available
Verified by PartsTable
NSN 9905-00-474-3581 — this item is cataloged by the U.S. Government under National Stock Number 9905-00-474-3581. Primary manufacturer part number: 6121.
Features
  • Plate,instruction — FSC 9905
  • Material: ALUMINUM ALLOY
  • Color: ALUMINUM FIRST SIDE INSCRIPTION
  • Marking Designation: LEGEND LOCATION NOT OTHERWISE SPECIFIED
  • Color: BLACK FIRST SIDE INSCRIPTION BACKGROUND
  • Attachment Method: HOLE
  • Length: 2.190 INCHES NOMINAL IN
  • Thickness: 0.020 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Plate,instruction, cataloged under National Stock Number 9905-00-474-3581, is classified within Federal Supply Class 9905 (No Item Name Available) of the Miscellaneous group. The primary manufacturer of record is Hiller Aircraft Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9905-00-474-3581
Primary Part Number6121
Item NamePlate,instruction
FSC / FSG9905 / 99 — No Item Name Available
ManufacturerHiller Aircraft Corporation
StatusACTIVE
MaterialALUMINUM ALLOY
ColorALUMINUM FIRST SIDE INSCRIPTION
Marking DesignationLEGEND LOCATION NOT OTHERWISE SPECIFIED
ColorBLACK FIRST SIDE INSCRIPTION BACKGROUND
Attachment MethodHOLE
Length2.190 INCHES NOMINAL IN
Thickness0.020 INCHES NOMINAL IN
Basic Shape StyleRECTANGULAR
Width1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1005-00-019-78916121 INTERCHANGEABLE
Plunger,trigger
Smith & Wesson Sales Company
5210-00-050-5143436.1MRL-150 INTERCHANGEABLE
Caliper,micrometer,outside
L.s. Starrett Company (the) Div Tool Division
3110-00-100-362152400 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3110-00-142-4286 INTERCHANGEABLE
Bearing,ball,airframe
4930-00-275-7900 INTERCHANGEABLE
Oiler,hand
3455-00-293-052408720 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
6250-00-299-60962036 INTERCHANGEABLE
Lampholder
Cole Hersee Company
5305-00-591-332021027 INTERCHANGEABLE
Screw,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4730-00-603-43716-121 INTERCHANGEABLE
Coupling Half,quick Disconnect
Transdigm Inc Div Adelwiggins Group
5307-00-637-9005 INTERCHANGEABLE
Stud,plain
Cross-Reference Index
Part NumberManufacturer
6121 PRIMARY Hiller Aircraft Corporation (USA)
Related Parts
1005-00-019-7891INTERCHANGEABLE
PLUNGER,TRIGGER
6121
5210-00-050-5143INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
436.1MRL-150
3110-00-100-3621INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
52400
3110-00-142-4286INTERCHANGEABLE
BEARING,BALL,AIRFRAME
4930-00-275-7900INTERCHANGEABLE
OILER,HAND
3455-00-293-0524INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
08720
6250-00-299-6096INTERCHANGEABLE
LAMPHOLDER
2036
5305-00-591-3320INTERCHANGEABLE
SCREW,MACHINE
21027
4730-00-603-4371INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
6-121
5307-00-637-9005INTERCHANGEABLE
STUD,PLAIN
5950-00-681-7181INTERCHANGEABLE
TRANSFORMER,POWER
C7742826P001
5310-00-927-0421INTERCHANGEABLE
NUT,TENSION

Frequently Asked Questions

What is NSN 9905-00-474-3581?

NSN 9905-00-474-3581 is a Plate,instruction, manufactured by Hiller Aircraft Corporation, classified under FSC 9905 (No Item Name Available). Status: active.

What are the part numbers for NSN 9905-00-474-3581?

NSN 9905-00-474-3581 has 1 cross-referenced part number: 6121 (Hiller Aircraft Corporation).

What NSN replaces 9905-00-474-3581?

There are 12 known substitutes for 9905-00-474-3581: 1005-00-019-7891, 5210-00-050-5143, 3110-00-100-3621 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6121?

Key specifications for 6121: Material: ALUMINUM ALLOY; Color: ALUMINUM FIRST SIDE INSCRIPTION; Marking Designation: LEGEND LOCATION NOT OTHERWISE SPECIFIED; Color: BLACK FIRST SIDE INSCRIPTION BACKGROUND. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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