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FF-R-55m
July 17, 19al
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FF-&.56c
November 20, 1970
FEMRAL S.PECIF1CATION
RIVET, sOLIO, SHALL; RfVfT, SPLIT. SNALL; RIvET TUBULAR, WALL;
FLAT MASHER (8uRR);
mo CM’, RIVET; GENEM PURPOSE
This specification was approved by the
Camnissfoner, Federal Supply Service,, General
Services Adminlstratl on, for the use of all
Federal Agencies.
1.
SCOP[ ANO CLASSIFICATION
1.1 w This specification covers solid, split. and tubular rivets {n !nch and metric SizOS having
shanks up to 1/2 inch or 10.0 millimeter in diameter, flat washers (burrs). and r!vet caps for general
purpose dnd aircraft application. .,
1.2 classification.
1.2.1 Rivets The rivets covered by this specification shall be of the folldutng Sypes, classes 81wS
grades Is=ied (see 6.2):
TYPe I - Belt (type) solid rivets.
Clg~d; ; Straight shank.
- Copper.
Grade F - Brass.
class 2 - Tapered shank. ;
Grade A . Copper.
Grade F - Brass.
Type IV . Tfnners, flat. head solid rfvets.
Grade A - Copper.
Grade B
- Aluminum.
Grade C . torroslon. resisting steel.
Grade O - Nickel-copper alloy [manel).
Grade E - Steel.
Grade F - Bras5.
TYPQG~~d~ ~n-head Solld rivets.
- Copper.
Grade B . Aluminum.
Grade C - Corrosion-resisting steel.
Grade O - Nickel-Copper alloy (none]).
Grade E
. Steel.
Grade F - Brass.
TyPe X
- Flat countersunk-head (90”) solid rivets.
Grade A - Copper.
Gra6e B - Aluminum.
Grade C - Corrosion-resisting steel.
Grade E - Steel.
Grade F - Brass.
TY&a~; ; Split rivets.
- Oval-head.
Grade E - Steel.
Grade F - Brass.
Class 2 - Flat countersunk-head.
Grade E - Steel.
Grade F - Brass.
FSC 5320
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